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Message boards : News : GFN-131072 Mega Prime!

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Van ZimmermanProject donor
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Joined: 30 Aug 12
Posts: 1634
ID: 168418
Credit: 3,606,570,011
RAC: 5,559,265
321 LLR Jade: Earned 10,000,000 credits (12,431,713)Cullen LLR Jade: Earned 10,000,000 credits (10,613,670)ESP LLR Jade: Earned 10,000,000 credits (10,146,224)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (11,298,131)PPS LLR Jade: Earned 10,000,000 credits (11,558,046)PSP LLR Jade: Earned 10,000,000 credits (17,826,235)SoB LLR Jade: Earned 10,000,000 credits (11,630,490)SR5 LLR Jade: Earned 10,000,000 credits (10,746,853)SGS LLR Jade: Earned 10,000,000 credits (10,468,919)TRP LLR Jade: Earned 10,000,000 credits (10,672,769)Woodall LLR Jade: Earned 10,000,000 credits (10,948,120)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 (50,408,124)GFN Double Ruby: Earned 2,000,000,000 credits (2,225,870,582)PSA Double Bronze: Earned 100,000,000 credits (163,076,054)
Message 110400 - Posted: 23 Sep 2017 | 12:28:55 UTC
Last modified: 23 Sep 2017 | 15:28:58 UTC

On 14 September 2017, 23:21:44 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime:

47179704^131072+1

The prime is 1,005,815 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 26th for Generalized Fermat primes and 250th overall.

The discovery was made by Andrei Okhrimouk (AndreiO) of Australia using an NVIDIA Geforce GTX 960 series GPU in an Intel(R) Core(TM)2 Duo CPU at 2.80GHz with 4GB RAM, running Microsoft Windows 10 Professional Edition. This GPU took about 21 minutes to probable prime (PRP) test with GeneferOCL2.

The PRP was confirmed prime by an Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz with 16GB RAM, running Microsoft Windows 7 Ultimate Edition. This computer took about 2 hours 42 minutes to complete the primality test using multithreaded LLR.

For more details, please see the official announcement.

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Message boards : News : GFN-131072 Mega Prime!

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