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Message boards : News : World Record Factorial Prime

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JohnProject donor
Honorary cruncher
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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 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 (suspended) 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 29325 - Posted: 15 Dec 2010 | 3:49:07 UTC

On 14 Dec 2010 02:12:42 UTC, PrimeGrid’s PRPNet found the largest known Factorial prime: 103040!-1

The prime is 471,794 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for Factorial primes and 136th overall.

The discovery was made by James Winskill of New Zealand using an Intel Core 2 Duo @ 2.13GHz with 2GB RAM, running 32 bit Windows XP. This computer took about 46 hours and 42 minutes to complete the primalty test with pfgw. James is a member of the PrimeSearchTeam.

For more details, please see the official announcement.
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Jon PinyanProject donor
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Joined: 16 Jul 06
Posts: 45
ID: 3155
Credit: 5,488,450
RAC: 0
321 LLR Silver: Earned 100,000 credits (154,732)Cullen LLR Silver: Earned 100,000 credits (109,760)ESP LLR Gold: Earned 500,000 credits (682,286)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (116,892)PPS LLR Gold: Earned 500,000 credits (706,153)PSP LLR Gold: Earned 500,000 credits (600,609)SoB LLR Silver: Earned 100,000 credits (109,467)SR5 LLR Silver: Earned 100,000 credits (264,135)SGS LLR Silver: Earned 100,000 credits (147,717)TRP LLR Silver: Earned 100,000 credits (148,718)Woodall LLR Silver: Earned 100,000 credits (115,615)321 Sieve (suspended) Bronze: Earned 10,000 credits (17,305)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (511,724)PPS Sieve Silver: Earned 100,000 credits (458,971)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (115,176)TRP Sieve (suspended) Silver: Earned 100,000 credits (332,035)AP 26/27 Silver: Earned 100,000 credits (194,064)GFN Gold: Earned 500,000 credits (630,259)PSA Bronze: Earned 10,000 credits (51,797)
Message 29327 - Posted: 15 Dec 2010 | 4:16:12 UTC

Awesome! Well done.

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Michael Millerick
Volunteer tester
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Joined: 4 Feb 09
Posts: 789
ID: 35074
Credit: 299,694,233
RAC: 329,538
Discovered 1 mega primeFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,023,600)Cullen LLR Ruby: Earned 2,000,000 credits (2,016,794)ESP LLR Jade: Earned 10,000,000 credits (16,743,302)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,032,353)PPS LLR Jade: Earned 10,000,000 credits (19,222,385)PSP LLR Ruby: Earned 2,000,000 credits (2,012,651)SoB LLR Ruby: Earned 2,000,000 credits (2,031,453)SR5 LLR Ruby: Earned 2,000,000 credits (2,085,475)SGS LLR Ruby: Earned 2,000,000 credits (2,035,177)TRP LLR Ruby: Earned 2,000,000 credits (2,740,707)Woodall LLR Ruby: Earned 2,000,000 credits (2,046,592)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,440,175)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,911,344)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Sapphire: Earned 20,000,000 credits (20,074,313)WW Emerald: Earned 50,000,000 credits (50,104,000)GFN Emerald: Earned 50,000,000 credits (55,935,030)PSA Emerald: Earned 50,000,000 credits (52,866,806)
Message 29378 - Posted: 15 Dec 2010 | 15:07:46 UTC

I'm glad to see that my efforts sieving for factorial primes are indirectly producing results.
____________

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rogue
Volunteer developer
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Joined: 8 Sep 07
Posts: 1221
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 29419 - Posted: 15 Dec 2010 | 23:53:38 UTC - in response to Message 29378.

I'm still waiting for the next primorial...

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JohnProject donor
Honorary cruncher
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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 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 (suspended) 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 29686 - Posted: 20 Dec 2010 | 15:54:27 UTC - in response to Message 29419.

I'm still waiting for the next primorial...

You didn't have to wait long. :D
____________

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rogue
Volunteer developer
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Joined: 8 Sep 07
Posts: 1221
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 29695 - Posted: 20 Dec 2010 | 19:12:51 UTC - in response to Message 29686.

I'm still waiting for the next primorial...

You didn't have to wait long. :D


I guess not. I did suggest to you via e-mail that good things come in threes. What a prognostication that was.

I'm waiting for someone to prove that prognostication wrong. :-)

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Message boards : News : World Record Factorial Prime

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