We will be announcing our new AP discoveries here. APs of length 25 and above will be listed.

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Tom Greer (tng*) of the United States. Tom is a member of the Sicituradastra. team.

The AP25 was returned on 12 Sep 2016 21:52:58 UTC. It was found by an Nvidia GTX 1080 on an Intel(R) Xeon(R) CPU E5-2623 v3 @ 3.00GHz running Microsoft Windows 10 Professional x64 Edition. It took about 21 minutes and 36 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Bryan Little (mfl0p) of the United States and was returned on 13 September 2016 10:51:23 UTC. This task was run on an Intel(R) Core(TM) i3-6100 CPU @ 3.70GHz running Microsoft Windows 10 Core x64 Edition. The double check took about 13 hours, 3 minutes and 5 seconds to complete.

The progression is written as 223696034591087459+1731112*23#*n for n=0..24. Credits are as follows:

Finder: Tom Greer
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
223696034591087459+1731112*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

223696034591087459+1731112*223092870*0=223696034591087459
223696034591087459+1731112*223092870*1=224082233335458899
223696034591087459+1731112*223092870*2=224468432079830339
223696034591087459+1731112*223092870*3=224854630824201779
223696034591087459+1731112*223092870*4=225240829568573219
223696034591087459+1731112*223092870*5=225627028312944659
223696034591087459+1731112*223092870*6=226013227057316099
223696034591087459+1731112*223092870*7=226399425801687539
223696034591087459+1731112*223092870*8=226785624546058979
223696034591087459+1731112*223092870*9=227171823290430419
223696034591087459+1731112*223092870*10=227558022034801859
223696034591087459+1731112*223092870*11=227944220779173299
223696034591087459+1731112*223092870*12=228330419523544739
223696034591087459+1731112*223092870*13=228716618267916179
223696034591087459+1731112*223092870*14=229102817012287619
223696034591087459+1731112*223092870*15=229489015756659059
223696034591087459+1731112*223092870*16=229875214501030499
223696034591087459+1731112*223092870*17=230261413245401939
223696034591087459+1731112*223092870*18=230647611989773379
223696034591087459+1731112*223092870*19=231033810734144819
223696034591087459+1731112*223092870*20=231420009478516259
223696034591087459+1731112*223092870*21=231806208222887699
223696034591087459+1731112*223092870*22=232192406967259139
223696034591087459+1731112*223092870*23=232578605711630579
223696034591087459+1731112*223092870*24=232964804456002019

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Magnus Karlsson (Mankka*) of Finland. Magnus is a member of the Sicituradastra. team.

The AP25 was returned on 15 Sep 2016 16:00:31 UTC. It was found by an AMD Cypress GPU on an Intel(R) Core(TM) i7 CPU 930 @ 2.80GHz running Microsoft Windows 7 Professional x64 Edition. It took about 8 hours, 22 minutes and 27 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Hiroyuki Okazaki (zunewantan) of Japan and was returned on 16 September 2016 1:14:28 UTC. This task was run on an Intel(R) Core(TM) i5-4590S CPU @ 3.00GHz running Microsoft Windows 7 Professional x64 Edition. The double check took about 17 hours, 11 minutes and 22 seconds to complete. Hiroyuki is a member of the Aggie The Pew team.

The progression is written as 235660731794099011+1949500*23#*n for n=0..24. Credits are as follows:

Finder: Magnus Karlsso
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
235660731794099011+1949500*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

235660731794099011+1949500*223092870*0=235660731794099011
235660731794099011+1949500*223092870*1=236095651344164011
235660731794099011+1949500*223092870*2=236530570894229011
235660731794099011+1949500*223092870*3=236965490444294011
235660731794099011+1949500*223092870*4=237400409994359011
235660731794099011+1949500*223092870*5=237835329544424011
235660731794099011+1949500*223092870*6=238270249094489011
235660731794099011+1949500*223092870*7=238705168644554011
235660731794099011+1949500*223092870*8=239140088194619011
235660731794099011+1949500*223092870*9=239575007744684011
235660731794099011+1949500*223092870*10=240009927294749011
235660731794099011+1949500*223092870*11=240444846844814011
235660731794099011+1949500*223092870*12=240879766394879011
235660731794099011+1949500*223092870*13=241314685944944011
235660731794099011+1949500*223092870*14=241749605495009011
235660731794099011+1949500*223092870*15=242184525045074011
235660731794099011+1949500*223092870*16=242619444595139011
235660731794099011+1949500*223092870*17=243054364145204011
235660731794099011+1949500*223092870*18=243489283695269011
235660731794099011+1949500*223092870*19=243924203245334011
235660731794099011+1949500*223092870*20=244359122795399011
235660731794099011+1949500*223092870*21=244794042345464011
235660731794099011+1949500*223092870*22=245228961895529011
235660731794099011+1949500*223092870*23=245663881445594011
235660731794099011+1949500*223092870*24=246098800995659011

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Honza Cholt (Honza) of the Czech Republic. Honza is a member of the BOINC.SK team.

The AP25 was returned on 16 Sep 2016 21:24:44 UTC. It was found by an Nvidia GTX 1070 GPU on an Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz running Microsoft Windows 10 Professional x64 Edition. It took about 25 minutes and 27 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by user (alfRKnet) of Germany and was returned on 18 September 2016 6:58:13 UTC. This task was run on an Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz running Microsoft Windows 10 Core x64 Edition. The double check took about 15 hours, 30 minutes and 13 seconds to complete. User alfRKnet is a member of the Rechenkraft.net team.

The progression is written as 124464776168666173+2104383*23#*n for n=0..24. Credits are as follows:

Finder: Honza Cholt
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
124464776168666173+2104383*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

124464776168666173+2104383*223092870*0=124464776168666173
124464776168666173+2104383*223092870*1=124934249011715383
124464776168666173+2104383*223092870*2=125403721854764593
124464776168666173+2104383*223092870*3=125873194697813803
124464776168666173+2104383*223092870*4=126342667540863013
124464776168666173+2104383*223092870*5=126812140383912223
124464776168666173+2104383*223092870*6=127281613226961433
124464776168666173+2104383*223092870*7=127751086070010643
124464776168666173+2104383*223092870*8=128220558913059853
124464776168666173+2104383*223092870*9=128690031756109063
124464776168666173+2104383*223092870*10=129159504599158273
124464776168666173+2104383*223092870*11=129628977442207483
124464776168666173+2104383*223092870*12=130098450285256693
124464776168666173+2104383*223092870*13=130567923128305903
124464776168666173+2104383*223092870*14=131037395971355113
124464776168666173+2104383*223092870*15=131506868814404323
124464776168666173+2104383*223092870*16=131976341657453533
124464776168666173+2104383*223092870*17=132445814500502743
124464776168666173+2104383*223092870*18=132915287343551953
124464776168666173+2104383*223092870*19=133384760186601163
124464776168666173+2104383*223092870*20=133854233029650373
124464776168666173+2104383*223092870*21=134323705872699583
124464776168666173+2104383*223092870*22=134793178715748793
124464776168666173+2104383*223092870*23=135262651558798003
124464776168666173+2104383*223092870*24=135732124401847213

New AP26!!!

A new AP26 (Arithmetic Progression of 26 primes) has been found. The finder is Takeshi Nakamura (kurogane-t) of Japan. Takeshi is a member of the BOINC@MIXI team.

This is only the fifth AP26 known to exist, and the second found at PrimeGrid.

The AP26 was returned on 3 November 2016 23:25:42 UTC. It was found by an Nvidia GTX 1070 GPU on an Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz running Microsoft Windows 10
Core x64 Edition. It took about 30 minutes and 1 second to process the task (each task tests 100 progression differences of 10 shifts each).

The AP26 task was double checked by James Nobis (quel) of the United States and was returned on 4 November 2016 3:37:51 UTC. This task was run on an ATI Tahiti GPU on an AMD Opteron(tm) Processor 6348 running Linux. The double check took about 1 hour, 20 minutes, and 40 seconds to complete. James is a member of the Sicituradastra. team.

The progression is written as 149836681069944461+7725290*23#*n for n=0..25. Credits are as follows:

Finder: Takeshi Nakamura
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP26 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 26 terms of the AP26
149836681069944461+7725290*23#*n for n=0..25

23#=2*3*5*7*11*13*17*19*23=223092870

149836681069944461+7725290*223092870*0=149836681069944461
149836681069944461+7725290*223092870*1=151560138187626761
149836681069944461+7725290*223092870*2=153283595305309061
149836681069944461+7725290*223092870*3=155007052422991361
149836681069944461+7725290*223092870*4=156730509540673661
149836681069944461+7725290*223092870*5=158453966658355961
149836681069944461+7725290*223092870*6=160177423776038261
149836681069944461+7725290*223092870*7=161900880893720561
149836681069944461+7725290*223092870*8=163624338011402861
149836681069944461+7725290*223092870*9=165347795129085161
149836681069944461+7725290*223092870*10=167071252246767461
149836681069944461+7725290*223092870*11=168794709364449761
149836681069944461+7725290*223092870*12=170518166482132061
149836681069944461+7725290*223092870*13=172241623599814361
149836681069944461+7725290*223092870*14=173965080717496661
149836681069944461+7725290*223092870*15=175688537835178961
149836681069944461+7725290*223092870*16=177411994952861261
149836681069944461+7725290*223092870*17=179135452070543561
149836681069944461+7725290*223092870*18=180858909188225861
149836681069944461+7725290*223092870*19=182582366305908161
149836681069944461+7725290*223092870*20=184305823423590461
149836681069944461+7725290*223092870*21=186029280541272761
149836681069944461+7725290*223092870*22=187752737658955061
149836681069944461+7725290*223092870*23=189476194776637361
149836681069944461+7725290*223092870*24=191199651894319661
149836681069944461+7725290*223092870*25=192923109012001961

For more information please see the Official Announcement.

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Hiroyuki Okazaki (zunewantan) of Japan. Hiroyuki is a member of the Aggie The Pew team.

The AP25 was returned on 17 November 2016 1:06:31 UTC. It was found by an Intel(R) Core(TM) i5-4590S CPU @ 3.00GHz running Microsoft Windows 7 Professional x64 Edition. It took about 15 hours, 45 minutes and 12 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Casey Townsend (Casey) of the United States and was returned on 17 November 2016 9:33:44 UTC. This task was run on an AMD CAL Hawaii GPU on an AMD Phenom(tm) II X4 965 running Microsoft Windows 7 Home Premium x64 Edition. The double check took about 43 minutes and 31 seconds to complete. Casey is a member of the FRESCA team.

The progression is written as 299460668118437929+9026994*23#*n for n=0..24. Credits are as follows:

Finder: Hiroyuki Okazaki
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
299460668118437929+9026994*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

299460668118437929+9026994*223092870*0=299460668118437929
299460668118437929+9026994*223092870*1=301474526117370709
299460668118437929+9026994*223092870*2=303488384116303489
299460668118437929+9026994*223092870*3=305502242115236269
299460668118437929+9026994*223092870*4=307516100114169049
299460668118437929+9026994*223092870*5=309529958113101829
299460668118437929+9026994*223092870*6=311543816112034609
299460668118437929+9026994*223092870*7=313557674110967389
299460668118437929+9026994*223092870*8=315571532109900169
299460668118437929+9026994*223092870*9=317585390108832949
299460668118437929+9026994*223092870*10=319599248107765729
299460668118437929+9026994*223092870*11=321613106106698509
299460668118437929+9026994*223092870*12=323626964105631289
299460668118437929+9026994*223092870*13=325640822104564069
299460668118437929+9026994*223092870*14=327654680103496849
299460668118437929+9026994*223092870*15=329668538102429629
299460668118437929+9026994*223092870*16=331682396101362409
299460668118437929+9026994*223092870*17=333696254100295189
299460668118437929+9026994*223092870*18=335710112099227969
299460668118437929+9026994*223092870*19=337723970098160749
299460668118437929+9026994*223092870*20=339737828097093529
299460668118437929+9026994*223092870*21=341751686096026309
299460668118437929+9026994*223092870*22=343765544094959089
299460668118437929+9026994*223092870*23=345779402093891869
299460668118437929+9026994*223092870*24=347793260092824649

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Rafael Trigueiro (Rafael) of Brazil. Rafael is a member of the LinusTechTips_Team.

The AP25 was returned on 18 November 2016 17:23:35 UTC. It was found by an NVIDIA GeForce GTX 970 GPU on an Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz running Microsoft Windows 10 Professional x64 Edition. It took about 35 minutes and 48 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Koichi Soraku (JG4KEZ(Koichi Soraku)) of Japan and was returned on 18 November 2016 19:16:30 UTC. This task was run on an NVIDIA GeForce GTX TITAN GPU on an Intel(R) Core(TM) i7-5775C CPU @ 3.30GHz running Microsoft Windows 7 Home Premium x64 Edition. The double check took about 1 hour, 16 minutes and 14 seconds to complete. Koichi is a member of the BOINC@MIXI team.

The progression is written as 322477370185894411+9633039*23#*n for n=0..24. Credits are as follows:

Finder: Rafael Trigueiro
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
322477370185894411+9633039*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

322477370185894411+9633039*223092870*0=322477370185894411
322477370185894411+9633039*223092870*1=324626432503226341
322477370185894411+9633039*223092870*2=326775494820558271
322477370185894411+9633039*223092870*3=328924557137890201
322477370185894411+9633039*223092870*4=331073619455222131
322477370185894411+9633039*223092870*5=333222681772554061
322477370185894411+9633039*223092870*6=335371744089885991
322477370185894411+9633039*223092870*7=337520806407217921
322477370185894411+9633039*223092870*8=339669868724549851
322477370185894411+9633039*223092870*9=341818931041881781
322477370185894411+9633039*223092870*10=343967993359213711
322477370185894411+9633039*223092870*11=346117055676545641
322477370185894411+9633039*223092870*12=348266117993877571
322477370185894411+9633039*223092870*13=350415180311209501
322477370185894411+9633039*223092870*14=352564242628541431
322477370185894411+9633039*223092870*15=354713304945873361
322477370185894411+9633039*223092870*16=356862367263205291
322477370185894411+9633039*223092870*17=359011429580537221
322477370185894411+9633039*223092870*18=361160491897869151
322477370185894411+9633039*223092870*19=363309554215201081
322477370185894411+9633039*223092870*20=365458616532533011
322477370185894411+9633039*223092870*21=367607678849864941
322477370185894411+9633039*223092870*22=369756741167196871
322477370185894411+9633039*223092870*23=371905803484528801
322477370185894411+9633039*223092870*24=374054865801860731

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Josef Matousek (vinn [Czech National Team]) of the Czech Republic. Josef is a member of the Czech National Team.

The AP25 was returned on 19 November 2016 2:02:34 UTC. It was found by an NVIDIA GeForce GTX 980 Ti GPU on an Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz running Microsoft Windows 10 Professional x64 Edition. It took about 24 minutes and 48 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Timo Schneider (XSmeagolX) of Germany and was returned on 19 November 2016 2:19:52 UTC. This task was run on an NVIDIA GeForce GTX 970 GPU on an Intel(R) Core(TM) i7-5930K CPU @ 3.50GHz running Microsoft Windows 10 Professional x64 Edition. The double check took about 41 minutes and 46 seconds to complete. Timo is a member of the SETI.Germany team.

The progression is written as 327723838632911059+10176298*23#*n for n=0..24. Credits are as follows:

Finder: Josef Matousek
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
327723838632911059+10176298*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

327723838632911059+10176298*223092870*0=327723838632911059
327723838632911059+10176298*223092870*1=329994098159706319
327723838632911059+10176298*223092870*2=332264357686501579
327723838632911059+10176298*223092870*3=334534617213296839
327723838632911059+10176298*223092870*4=336804876740092099
327723838632911059+10176298*223092870*5=339075136266887359
327723838632911059+10176298*223092870*6=341345395793682619
327723838632911059+10176298*223092870*7=343615655320477879
327723838632911059+10176298*223092870*8=345885914847273139
327723838632911059+10176298*223092870*9=348156174374068399
327723838632911059+10176298*223092870*10=350426433900863659
327723838632911059+10176298*223092870*11=352696693427658919
327723838632911059+10176298*223092870*12=354966952954454179
327723838632911059+10176298*223092870*13=357237212481249439
327723838632911059+10176298*223092870*14=359507472008044699
327723838632911059+10176298*223092870*15=361777731534839959
327723838632911059+10176298*223092870*16=364047991061635219
327723838632911059+10176298*223092870*17=366318250588430479
327723838632911059+10176298*223092870*18=368588510115225739
327723838632911059+10176298*223092870*19=370858769642020999
327723838632911059+10176298*223092870*20=373129029168816259
327723838632911059+10176298*223092870*21=375399288695611519
327723838632911059+10176298*223092870*22=377669548222406779
327723838632911059+10176298*223092870*23=379939807749202039
327723838632911059+10176298*223092870*24=382210067275997299

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Ross Goudie (Ross*) of New Zealand. Ross is a member of the Sicituradastra. team.

The AP25 was returned on 18 November 2016 20:24:49 UTC. It was found by an NVIDIA GeForce GTX 1080 GPU on an Intel(R) Core(TM) i7-6850K CPU @ 3.60GHz running Microsoft Windows 10 Core x64 Edition. It took about 21 minutes and 37 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Hans Rensen ([DPC] hansR) of the Netherlands and was returned on 19 November 2016 10:16:35 UTC. This task was run on an NVIDIA Quadro K3000M GPU on an Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz running Microsoft Windows 10 Professional x64 Edition. The double check took about 7 hours, 10 minutes and 58 seconds to complete. Hans is a member of the Dutch Power Cows team.

The progression is written as 84314670428700353+9954590*23#*n for n=0..24. Credits are as follows:

Finder: Ross Goudie
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
84314670428700353+9954590*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

84314670428700353+9954590*223092870*0=84314670428700353
84314670428700353+9954590*223092870*1=86535468481473653
84314670428700353+9954590*223092870*2=88756266534246953
84314670428700353+9954590*223092870*3=90977064587020253
84314670428700353+9954590*223092870*4=93197862639793553
84314670428700353+9954590*223092870*5=95418660692566853
84314670428700353+9954590*223092870*6=97639458745340153
84314670428700353+9954590*223092870*7=99860256798113453
84314670428700353+9954590*223092870*8=102081054850886753
84314670428700353+9954590*223092870*9=104301852903660053
84314670428700353+9954590*223092870*10=106522650956433353
84314670428700353+9954590*223092870*11=108743449009206653
84314670428700353+9954590*223092870*12=110964247061979953
84314670428700353+9954590*223092870*13=113185045114753253
84314670428700353+9954590*223092870*14=115405843167526553
84314670428700353+9954590*223092870*15=117626641220299853
84314670428700353+9954590*223092870*16=119847439273073153
84314670428700353+9954590*223092870*17=122068237325846453
84314670428700353+9954590*223092870*18=124289035378619753
84314670428700353+9954590*223092870*19=126509833431393053
84314670428700353+9954590*223092870*20=128730631484166353
84314670428700353+9954590*223092870*21=130951429536939653
84314670428700353+9954590*223092870*22=133172227589712953
84314670428700353+9954590*223092870*23=135393025642486253
84314670428700353+9954590*223092870*24=137613823695259553

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is John S Chambers (Johnny Rotten) of the United States. John is a member of the SETI.USA team.

The AP25 was returned on 19 November 2016 2:27:31 UTC. It was found by an NVIDIA GeForce GTX 1080 GPU on an Intel(R) Core(TM) i7-5930K CPU @ 3.50GHz running Microsoft Windows Professional x64 Edition. It took about 18 minutes and 47 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Josef Matousek (vinn [Czech National Team]) of the Czech Republic and was returned on 19 November 2016 8:21:04 UTC. This task was run on an NVIDIA Tesla K20m GPU on an Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz running Microsoft Windows Server 2012 R2 Standard x64 Edition. The double check took about 1 hour, 55 minutes and 35 seconds to complete. Josef is a member of the Czech National Team.

The progression is written as 193513604089287343+10189009*23#*n for n=0..24. Credits are as follows:

Finder: John S Chambers
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
193513604089287343+10189009*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

193513604089287343+10189009*223092870*0=193513604089287343
193513604089287343+10189009*223092870*1=195786699349553173
193513604089287343+10189009*223092870*2=198059794609819003
193513604089287343+10189009*223092870*3=200332889870084833
193513604089287343+10189009*223092870*4=202605985130350663
193513604089287343+10189009*223092870*5=204879080390616493
193513604089287343+10189009*223092870*6=207152175650882323
193513604089287343+10189009*223092870*7=209425270911148153
193513604089287343+10189009*223092870*8=211698366171413983
193513604089287343+10189009*223092870*9=213971461431679813
193513604089287343+10189009*223092870*10=216244556691945643
193513604089287343+10189009*223092870*11=218517651952211473
193513604089287343+10189009*223092870*12=220790747212477303
193513604089287343+10189009*223092870*13=223063842472743133
193513604089287343+10189009*223092870*14=225336937733008963
193513604089287343+10189009*223092870*15=227610032993274793
193513604089287343+10189009*223092870*16=229883128253540623
193513604089287343+10189009*223092870*17=232156223513806453
193513604089287343+10189009*223092870*18=234429318774072283
193513604089287343+10189009*223092870*19=236702414034338113
193513604089287343+10189009*223092870*20=238975509294603943
193513604089287343+10189009*223092870*21=241248604554869773
193513604089287343+10189009*223092870*22=243521699815135603
193513604089287343+10189009*223092870*23=245794795075401433
193513604089287343+10189009*223092870*24=248067890335667263

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Stephen Draycott (Stephen Draycott) of the United Kingdom.

The AP25 was returned on 20 November 2016 2:47:04 UTC. It was found by an NVIDIA Quadro K5200 GPU on an Intel(R) Xeon(R) CPU E5-2670 v3 @ 2.30GHz running Microsoft Windows 10 Professional x64 Edition. It took about 1 hour, 34 minutes and 19 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Brian Herbers (Shadowlurker) of the United States and was returned on 20 November 2016 18:04:32 UTC. This task was run on an NVIDIA GeForce GTX 970 GPU on an Intel(R) Core(TM) i5-4670 CPU @ 3.40GHz running Microsoft Windows 10 Core x64 Edition. The double check took about 1 hour, 15 minutes and 25 seconds to complete. Brian is a member of the SETI.USA team.

The progression is written as 203563934890169353+11105961*23#*n for n=0..24. Credits are as follows:

Finder: Stephen Draycott
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
203563934890169353+11105961*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

203563934890169353+11105961*223092870*0=203563934890169353
203563934890169353+11105961*223092870*1=206041595603767423
203563934890169353+11105961*223092870*2=208519256317365493
203563934890169353+11105961*223092870*3=210996917030963563
203563934890169353+11105961*223092870*4=213474577744561633
203563934890169353+11105961*223092870*5=215952238458159703
203563934890169353+11105961*223092870*6=218429899171757773
203563934890169353+11105961*223092870*7=220907559885355843
203563934890169353+11105961*223092870*8=223385220598953913
203563934890169353+11105961*223092870*9=225862881312551983
203563934890169353+11105961*223092870*10=228340542026150053
203563934890169353+11105961*223092870*11=230818202739748123
203563934890169353+11105961*223092870*12=233295863453346193
203563934890169353+11105961*223092870*13=235773524166944263
203563934890169353+11105961*223092870*14=238251184880542333
203563934890169353+11105961*223092870*15=240728845594140403
203563934890169353+11105961*223092870*16=243206506307738473
203563934890169353+11105961*223092870*17=245684167021336543
203563934890169353+11105961*223092870*18=248161827734934613
203563934890169353+11105961*223092870*19=250639488448532683
203563934890169353+11105961*223092870*20=253117149162130753
203563934890169353+11105961*223092870*21=255594809875728823
203563934890169353+11105961*223092870*22=258072470589326893
203563934890169353+11105961*223092870*23=260550131302924963
203563934890169353+11105961*223092870*24=263027792016523033

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Stefan Larsson (288larsson) of Sweden. Stefan is a member of the Sicituradastra. team.

The AP25 was returned on 21 November 2016 10:01:32 UTC. It was found by an AMD CAL Fiji GPU on an Intel(R) Core(TM) i5-4670K CPU @ 3.40GHz running Linux. It took about 59 minutes and 58 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Zdenek Vasku (HA-SOFT, s.r.o.) of the Czech Republic and was returned on 23 November 2016 3:04:07 UTC. This task was run on an NVIDIA GeForce GTX 590 GPU on an Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz running Linux. The double check took about 1 hour, 40 minutes and 42 seconds to complete. Zdenek is a member of the Czech National Team.

The progression is written as 231349139005158193+12169920*23#*n for n=0..24. Credits are as follows:

Finder: Stefan Larsson
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
231349139005158193+12169920*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

231349139005158193+12169920*223092870*0=231349139005158193
231349139005158193+12169920*223092870*1=234064161385628593
231349139005158193+12169920*223092870*2=236779183766098993
231349139005158193+12169920*223092870*3=239494206146569393
231349139005158193+12169920*223092870*4=242209228527039793
231349139005158193+12169920*223092870*5=244924250907510193
231349139005158193+12169920*223092870*6=247639273287980593
231349139005158193+12169920*223092870*7=250354295668450993
231349139005158193+12169920*223092870*8=253069318048921393
231349139005158193+12169920*223092870*9=255784340429391793
231349139005158193+12169920*223092870*10=258499362809862193
231349139005158193+12169920*223092870*11=261214385190332593
231349139005158193+12169920*223092870*12=263929407570802993
231349139005158193+12169920*223092870*13=266644429951273393
231349139005158193+12169920*223092870*14=269359452331743793
231349139005158193+12169920*223092870*15=272074474712214193
231349139005158193+12169920*223092870*16=274789497092684593
231349139005158193+12169920*223092870*17=277504519473154993
231349139005158193+12169920*223092870*18=280219541853625393
231349139005158193+12169920*223092870*19=282934564234095793
231349139005158193+12169920*223092870*20=285649586614566193
231349139005158193+12169920*223092870*21=288364608995036593
231349139005158193+12169920*223092870*22=291079631375506993
231349139005158193+12169920*223092870*23=293794653755977393
231349139005158193+12169920*223092870*24=296509676136447793

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is Mike Kinney (Mektacular) of the United States. Mike is a member of the Crunching@EVGA team.

The AP25 was returned on 21 November 2016 16:21:09 UTC. It was found by an NVIDIA GeForce GTX 1070 GPU on an Intel(R) Core(TM) i7-6850K CPU @ 3.60GHz running Microsoft Windows 10 Professional x64 Edition. It took about 23 minutes and 26 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by 王者也 (之乎) of China and was returned on 23 November 2016 20:14:42 UTC. This task was run on an NVIDIA GeForce GTX 1070 GPU on an Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz running Microsoft Windows 10 Professional x64 Edition. The double check took about 25 minutes and 23 seconds to complete. 王者也 is a member of Team China.

The progression is written as 290884103695102903+12444168*23#*n for n=0..24. Credits are as follows:

Finder: Mike Kinney
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
290884103695102903+12444168*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

290884103695102903+12444168*223092870*0=290884103695102903
290884103695102903+12444168*223092870*1=293660308848985063
290884103695102903+12444168*223092870*2=296436514002867223
290884103695102903+12444168*223092870*3=299212719156749383
290884103695102903+12444168*223092870*4=301988924310631543
290884103695102903+12444168*223092870*5=304765129464513703
290884103695102903+12444168*223092870*6=307541334618395863
290884103695102903+12444168*223092870*7=310317539772278023
290884103695102903+12444168*223092870*8=313093744926160183
290884103695102903+12444168*223092870*9=315869950080042343
290884103695102903+12444168*223092870*10=318646155233924503
290884103695102903+12444168*223092870*11=321422360387806663
290884103695102903+12444168*223092870*12=324198565541688823
290884103695102903+12444168*223092870*13=326974770695570983
290884103695102903+12444168*223092870*14=329750975849453143
290884103695102903+12444168*223092870*15=332527181003335303
290884103695102903+12444168*223092870*16=335303386157217463
290884103695102903+12444168*223092870*17=338079591311099623
290884103695102903+12444168*223092870*18=340855796464981783
290884103695102903+12444168*223092870*19=343632001618863943
290884103695102903+12444168*223092870*20=346408206772746103
290884103695102903+12444168*223092870*21=349184411926628263
290884103695102903+12444168*223092870*22=351960617080510423
290884103695102903+12444168*223092870*23=354736822234392583
290884103695102903+12444168*223092870*24=357513027388274743

New AP25

A new AP25 (Arithmetic Progression of 25 primes) has been found. The finder is James Krauss (Grebuloner) of the United States. James is a member of The Knights Who Say Ni! team.

The AP25 was returned on 19 November 2016 18:12:03 UTC. It was found by an NVIDIA GeForce GTX 980 Ti GPU on an Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz running Microsoft Windows 7 Professional x64 Edition. It took about 24 minutes and 57 seconds to process the task (each task tests 100 progression differences of 10 shifts each).

The AP25 task was double checked by Steven Schapendonk (HK-Steve) of Switzerland and was returned on 24 November 2016 2:02:29 UTC. This task was run on an Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz running Microsoft Windows 10 Professional x64 Edition. The double check took about 11 hours, 35 minutes and 4 seconds to complete. Steven is a member of the Crunching@EVGA team.

The progression is written as 183800317923336901+10816541*23#*n for n=0..24. Credits are as follows:

Finder: James Krauss
Project: PrimeGrid
Program: AP26

The original AP26 program was written by Jaroslaw Wroblewski and adapted to BOINC by Geoff Reynolds.
The 2016 CPU and OpenCL versions of AP26 were updated by Bryan Little and Iain Bethune.

All builds by Brian Little and Iain Bethune

The AP25 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):

• All known AP24 to AP26
  

Congratulations! Best of Luck on the continued search for the AP27. :)

Additional AP Information
How to search for 26 primes in arithmetic progression? by Jaroslaw Wroblewski
Primes in arithmetic progression - Wikipedia
Prime Arithmetic Progression - Wolfram MathWorld
arithmetic sequence - The Prime Glossary at the Prime Pages

The 25 terms of the AP25
183800317923336901+10816541*23#*n for n=0..24

23#=2*3*5*7*11*13*17*19*23=223092870

183800317923336901+10816541*223092870*0=183800317923336901
183800317923336901+10816541*223092870*1=186213411098499571
183800317923336901+10816541*223092870*2=188626504273662241
183800317923336901+10816541*223092870*3=191039597448824911
183800317923336901+10816541*223092870*4=193452690623987581
183800317923336901+10816541*223092870*5=195865783799150251
183800317923336901+10816541*223092870*6=198278876974312921
183800317923336901+10816541*223092870*7=200691970149475591
183800317923336901+10816541*223092870*8=203105063324638261
183800317923336901+10816541*223092870*9=205518156499800931
183800317923336901+10816541*223092870*10=207931249674963601
183800317923336901+10816541*223092870*11=210344342850126271
183800317923336901+10816541*223092870*12=212757436025288941
183800317923336901+10816541*223092870*13=215170529200451611
183800317923336901+10816541*223092870*14=217583622375614281
183800317923336901+10816541*223092870*15=219996715550776951
183800317923336901+10816541*223092870*16=222409808725939621
183800317923336901+10816541*223092870*17=224822901901102291
183800317923336901+10816541*223092870*18=227235995076264961
183800317923336901+10816541*223092870*19=229649088251427631
183800317923336901+10816541*223092870*20=232062181426590301
183800317923336901+10816541*223092870*21=234475274601752971
183800317923336901+10816541*223092870*22=236888367776915641
183800317923336901+10816541*223092870*23=239301460952078311
183800317923336901+10816541*223092870*24=241714554127240981