PrimeGrid
Please visit donation page to help the project cover running costs for this month

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : News : New PSP Mega Prime!

Author Message
Van ZimmermanProject donor
Volunteer moderator
Volunteer tester
Project scientist
Send message
Joined: 30 Aug 12
Posts: 1692
ID: 168418
Credit: 3,864,917,846
RAC: 4,756,490
321 LLR Jade: Earned 10,000,000 credits (12,546,899)Cullen LLR Jade: Earned 10,000,000 credits (11,076,874)ESP LLR Jade: Earned 10,000,000 credits (10,288,341)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (11,925,834)PPS LLR Jade: Earned 10,000,000 credits (14,114,452)PSP LLR Jade: Earned 10,000,000 credits (17,826,235)SoB LLR Jade: Earned 10,000,000 credits (12,283,763)SR5 LLR Jade: Earned 10,000,000 credits (11,284,277)SGS LLR Jade: Earned 10,000,000 credits (10,484,325)TRP LLR Jade: Earned 10,000,000 credits (13,328,085)Woodall LLR Jade: Earned 10,000,000 credits (11,831,430)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (18,073,742)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,000,651,011)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (50,488,984)GFN Double Ruby: Earned 2,000,000,000 credits (2,470,189,322)PSA Double Bronze: Earned 100,000,000 credits (168,236,054)
Message 110531 - Posted: 29 Sep 2017 | 11:31:42 UTC
Last modified: 29 Sep 2017 | 11:32:21 UTC

On 17 September 2017, 21:30:08 UTC, PrimeGrid’s Prime Sierpinski Problem project eliminated k=168451 by finding the mega prime:

168451*2^19375200+1

The prime is 5,832,522 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 13th overall. 9 k's now remain in the Prime Sierpinski Problem (2 of which are being searched as part of Seventeen or Bust). This is the third largest prime found by PrimeGrid.

Until the Prime Sierpinski Project shut down in 2014, this search was a collaboration between Primegrid and the Prime Sierpinski Project. This discovery would not have been possible without all the work done over the years by the Prime Sierpinski Project.

The discovery was made by Ben Maloney (paleseptember) of Australia using an Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz with 16GB RAM running Windows 10 Professional Edition. This computer took about 2 days, 15 hours, 11 minutes to complete the primality test using LLR. Ben is a member of the Free-DC team.

The prime was verified on 23 September 2017 00:58:27 UTC by user cnoize using an Intel(R) Xeon(R) E5-2640 CPU @ 2.50GHz with 8GB RAM, running Windows Server 2008R2. This computer took about 6 days, 7 hours, 19 minutes to complete the primality test using LLR. Cnoize is a member of Team China, and the system was participating in the Gridcoin team.

For more details, please see the official announcement.

Vitaly
Send message
Joined: 24 Sep 12
Posts: 27
ID: 173343
Credit: 11,895,627
RAC: 14,972
ESP LLR Silver: Earned 100,000 credits (285,317)PPS LLR Bronze: Earned 10,000 credits (10,134)PSP LLR Amethyst: Earned 1,000,000 credits (1,080,134)SoB LLR Turquoise: Earned 5,000,000 credits (6,492,139)TRP LLR Bronze: Earned 10,000 credits (46,141)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (364,372)PPS Sieve Ruby: Earned 2,000,000 credits (3,367,629)TRP Sieve (suspended) Bronze: Earned 10,000 credits (22,458)GFN Silver: Earned 100,000 credits (223,935)
Message 110532 - Posted: 29 Sep 2017 | 11:39:14 UTC - in response to Message 110531.

I like such primes )

Profile Crun-chi
Volunteer tester
Avatar
Send message
Joined: 25 Nov 09
Posts: 2205
ID: 50683
Credit: 37,301,417
RAC: 22,144
321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Amethyst: Earned 1,000,000 credits (1,552,869)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,073,792)TRP LLR Silver: Earned 100,000 credits (122,712)Woodall LLR Silver: Earned 100,000 credits (122,944)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (10,561,511)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,151,359)GFN Jade: Earned 10,000,000 credits (10,741,435)PSA Turquoise: Earned 5,000,000 credits (7,512,440)
Message 110533 - Posted: 29 Sep 2017 | 13:18:59 UTC - in response to Message 110532.

If I may ask: why, sometimes ( most of time) is marked: is prime!!!! and sometimes like this one: there no notice in candidate that candidate is prime.
____________
9 *10^1009567-1 REPDIGIT MEGA PRIME :) :) :)
57*2^3339932-1 MEGA PRIME :)
4 *737^269302+1 GENERALIZED FERMAT :)
Proud member of team Aggie The Pew. Go Aggie!

Michael GoetzProject donor
Volunteer moderator
Project scientist
Avatar
Send message
Joined: 21 Jan 10
Posts: 9703
ID: 53948
Credit: 107,847,635
RAC: 49,503
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,632,795)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,324,283)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,175,834)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,881,239)GFN Sapphire: Earned 20,000,000 credits (42,663,419)PSA Jade: Earned 10,000,000 credits (10,028,791)
Message 110536 - Posted: 29 Sep 2017 | 15:09:58 UTC - in response to Message 110533.
Last modified: 29 Sep 2017 | 15:40:10 UTC

If I may ask: why, sometimes ( most of time) is marked: is prime!!!! and sometimes like this one: there no notice in candidate that candidate is prime.


Marked where?

EDIT: If you're asking about the Work Unit page, the reason it's not market yet is because T5K hasn't finished processing it yet. Once it's done, the prime designation will show up automatically.

EDIT 2: This PSP prime also doesn't yet show up in our primes list. That will happen at about the same time the workunit starts showing "is prime!!!".
____________

Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

Profile Dave
Send message
Joined: 13 Feb 12
Posts: 1915
ID: 130544
Credit: 539,624,685
RAC: 371,107
321 LLR Turquoise: Earned 5,000,000 credits (5,008,573)Cullen LLR Ruby: Earned 2,000,000 credits (2,600,996)ESP LLR Ruby: Earned 2,000,000 credits (2,502,087)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,502,040)PPS LLR Ruby: Earned 2,000,000 credits (2,500,022)PSP LLR Ruby: Earned 2,000,000 credits (3,521,831)SoB LLR Ruby: Earned 2,000,000 credits (2,504,136)SR5 LLR Ruby: Earned 2,000,000 credits (2,500,985)SGS LLR Ruby: Earned 2,000,000 credits (2,555,530)TRP LLR Ruby: Earned 2,000,000 credits (2,500,365)Woodall LLR Ruby: Earned 2,000,000 credits (2,513,877)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,054,169)PPS Sieve Double Silver: Earned 200,000,000 credits (257,406,189)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,133)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,970)AP 26/27 Emerald: Earned 50,000,000 credits (50,270,662)GFN Emerald: Earned 50,000,000 credits (85,421,956)PSA Emerald: Earned 50,000,000 credits (90,000,001)
Message 110539 - Posted: 29 Sep 2017 | 17:12:17 UTC

Woot from Davinaland!

Profile Crun-chi
Volunteer tester
Avatar
Send message
Joined: 25 Nov 09
Posts: 2205
ID: 50683
Credit: 37,301,417
RAC: 22,144
321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Amethyst: Earned 1,000,000 credits (1,552,869)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,073,792)TRP LLR Silver: Earned 100,000 credits (122,712)Woodall LLR Silver: Earned 100,000 credits (122,944)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (10,561,511)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,151,359)GFN Jade: Earned 10,000,000 credits (10,741,435)PSA Turquoise: Earned 5,000,000 credits (7,512,440)
Message 110540 - Posted: 29 Sep 2017 | 17:23:43 UTC - in response to Message 110536.

If I may ask: why, sometimes ( most of time) is marked: is prime!!!! and sometimes like this one: there no notice in candidate that candidate is prime.


Marked where?

EDIT: If you're asking about the Work Unit page, the reason it's not market yet is because T5K hasn't finished processing it yet. Once it's done, the prime designation will show up automatically.

EDIT 2: This PSP prime also doesn't yet show up in our primes list. That will happen at about the same time the workunit starts showing "is prime!!!".


Right to the point :)
Thanks!
____________
9 *10^1009567-1 REPDIGIT MEGA PRIME :) :) :)
57*2^3339932-1 MEGA PRIME :)
4 *737^269302+1 GENERALIZED FERMAT :)
Proud member of team Aggie The Pew. Go Aggie!

Post to thread

Message boards : News : New PSP Mega Prime!

[Return to PrimeGrid main page]
Copyright © 2005 - 2017 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 1.26, 1.11, 1.46
Generated 12 Dec 2017 | 0:35:38 UTC