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

Toggle Menu

Join PrimeGrid

  1. Read our rules and policies.
  2. Download, install and run the BOINC software used by PrimeGrid.
  3. When prompted, enter the URL:
    http://www.primegrid.com/
  4. Select which subprojects to run via the PrimeGrid Preferences.

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : News : World Record Primorial prime

Subscribe Sort
Author Message
John Project donor
Honorary cruncher
Avatar
Send message
Joined: 21 Feb 06
Posts: 2875
ID: 2449
Credit: 2,681,934
RAC: 0
321 LLR Bronze: Earned 10,000 credits (11,773)Cullen LLR Bronze: Earned 10,000 credits (14,945)ESP LLR Bronze: Earned 10,000 credits (26,855)PPS LLR Bronze: Earned 10,000 credits (84,876)PSP LLR Bronze: Earned 10,000 credits (15,311)SoB LLR Bronze: Earned 10,000 credits (21,440)SR5 LLR Bronze: Earned 10,000 credits (29,270)SGS LLR (suspended) Bronze: Earned 10,000 credits (26,616)TPS LLR (retired) Bronze: Earned 10,000 credits (36,288)TRP LLR Bronze: Earned 10,000 credits (41,655)Woodall LLR Bronze: Earned 10,000 credits (15,807)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,014)Cullen/Woodall Sieve Bronze: Earned 10,000 credits (23,405)PPS Sieve Bronze: Earned 10,000 credits (36,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,306)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,738)GFN Bronze: Earned 10,000 credits (86,217)PSA Ruby: Earned 2,000,000 credits (2,143,756)
Message 51000 - Posted: 2 Mar 2012 | 3:53:46 UTC
Last modified: 5 Mar 2012 | 7:05:28 UTC

On 28 Feb 2012, PrimeGrid’s Primorial Prime Search, through PRPNet, has found a world record primorial prime: 1098133#-1

The prime is 476,311 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for Primorial primes and 253rd overall.

The discovery was made by James P. Burt (jpaul) of the Cayman Islands using an AMD Phenom 9750 Quad-Core @ 2.4GHz with 4 GB RAM running Windows 7 Professional x64. James is a member of the Aggie_The_Pew team.

This is only the 20th known p#-1 Primorial prime and the 2nd discovered in the last 20 years. For more details, please see the official announcement.
____________

ID: 51000 | Report as offensive
rogue
Volunteer developer
Avatar
Send message
Joined: 8 Sep 07
Posts: 1292
ID: 12001
Credit: 18,565,548
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 51016 - Posted: 2 Mar 2012 | 14:05:32 UTC

Where is the next +1 primorial? PrimeGrid found two -1 primorials. No new +1 primorials have been found in over a decade. Maybe 2012 will be the year to find the next one.

ID: 51016 | Report as offensive
rogue
Volunteer developer
Avatar
Send message
Joined: 8 Sep 07
Posts: 1292
ID: 12001
Credit: 18,565,548
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 51022 - Posted: 2 Mar 2012 | 15:22:07 UTC

I just realized that in one week that three different PRPNet projects found record setting primes. 121, 27, and now Primorial.

Which one will be next? SG? GFN? CW? Factorial?

ID: 51022 | Report as offensive
Christopher Siegert
Send message
Joined: 5 Jul 09
Posts: 233
ID: 42986
Credit: 121,873,589
RAC: 0
321 LLR Amethyst: Earned 1,000,000 credits (1,041,657)Cullen LLR Amethyst: Earned 1,000,000 credits (1,366,558)PPS LLR Sapphire: Earned 20,000,000 credits (22,481,912)PSP LLR Amethyst: Earned 1,000,000 credits (1,521,444)SoB LLR Amethyst: Earned 1,000,000 credits (1,751,070)SR5 LLR Amethyst: Earned 1,000,000 credits (1,100,031)SGS LLR (suspended) Amethyst: Earned 1,000,000 credits (1,014,953)TRP LLR Ruby: Earned 2,000,000 credits (3,647,371)Woodall LLR Amethyst: Earned 1,000,000 credits (1,479,507)Cullen/Woodall Sieve Bronze: Earned 10,000 credits (41,181)PPS Sieve Emerald: Earned 50,000,000 credits (74,260,244)TRP Sieve (suspended) Silver: Earned 100,000 credits (206,682)GFN Jade: Earned 10,000,000 credits (11,960,980)
Message 51033 - Posted: 2 Mar 2012 | 20:05:19 UTC

I would bet GFP or TRP. That's where the action is.

ID: 51033 | Report as offensive
Profile Crun-chi Project donor
Volunteer tester
Avatar
Send message
Joined: 25 Nov 09
Posts: 3370
ID: 50683
Credit: 227,755,090
RAC: 111
Discovered 4 mega primesEliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de PrimesFound 1 prime in the 2022 Tour de PrimesFound 2 primes in the 2023 Tour de PrimesFound 2 primes in the 2024 Tour de PrimesFound 1 prime in the 2025 Tour de PrimesFound 2 primes in the 2026 Tour de PrimesFound 2 mega primes in the 2026 Tour de PrimesFound 1 prime in the 2026 Tour de Primes Mountain StageFound 1 mega prime in the 2026 Tour de Primes Mountain Stage321 LLR Gold: Earned 500,000 credits (712,274)Compositorial Prime Search Ruby: Earned 2,000,000 credits (2,940,342)Cullen LLR Gold: Earned 500,000 credits (550,730)ESP LLR Turquoise: Earned 5,000,000 credits (5,057,251)PPS LLR Sapphire: Earned 20,000,000 credits (49,884,336)PSP LLR Ruby: Earned 2,000,000 credits (2,838,382)SoB LLR Gold: Earned 500,000 credits (564,147)SR5 LLR Turquoise: Earned 5,000,000 credits (8,259,890)SGS LLR (suspended) Amethyst: Earned 1,000,000 credits (1,328,241)TRP LLR Gold: Earned 500,000 credits (626,755)Woodall LLR Gold: Earned 500,000 credits (593,942)321 Sieve (suspended) Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,129,666)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,945,679)Sierpinski/Riesel Base 5 Sieve Silver: Earned 100,000 credits (240,703)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Turquoise: Earned 5,000,000 credits (5,644,511)GFN Double Bronze: Earned 100,000,000 credits (121,952,066)WW (retired) Amethyst: Earned 1,000,000 credits (1,088,000)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 51039 - Posted: 2 Mar 2012 | 22:47:28 UTC - in response to Message 51033.

What is server for Primorial PRPNET?
____________
2*836^798431+1 CRUS PRIME
92*10^1585996-1 NEAR-REPDIGIT PRIME :) :) :)
2022202116^131072+1 GFN
Proud member of team Aggie The Pew. Go Aggie!

ID: 51039 | Report as offensive
rogue
Volunteer developer
Avatar
Send message
Joined: 8 Sep 07
Posts: 1292
ID: 12001
Credit: 18,565,548
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 51041 - Posted: 2 Mar 2012 | 23:53:02 UTC - in response to Message 51039.

What is server for Primorial PRPNET?


prpnet.primegrid.com:12008

Someone at mersenneforum put this page together listing all public PRPNet servers:

http://www.rieselprime.de/Related/PublicServers.htm

ID: 51041 | Report as offensive

Message boards : News : World Record Primorial prime

[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2026 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 3.50, 3.61, 3.45
Generated 31 May 2026 | 0:16:06 UTC