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Message boards : News : Yet Another GFN-131072 Mega Prime!

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Van Zimmerman
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321 LLR Jade: Earned 10,000,000 credits (10,105,924)Cullen LLR Jade: Earned 10,000,000 credits (10,151,486)ESP LLR Jade: Earned 10,000,000 credits (10,051,673)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,262,044)PPS LLR Jade: Earned 10,000,000 credits (10,087,084)PSP LLR Jade: Earned 10,000,000 credits (17,826,235)SoB LLR Jade: Earned 10,000,000 credits (10,166,183)SR5 LLR Jade: Earned 10,000,000 credits (10,048,807)SGS LLR Jade: Earned 10,000,000 credits (10,348,539)TRP LLR Jade: Earned 10,000,000 credits (10,046,894)Woodall LLR Jade: Earned 10,000,000 credits (10,169,195)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 (50,092,770)GFN Double Amethyst: Earned 1,000,000,000 credits (1,919,496,431)PSA Double Bronze: Earned 100,000,000 credits (153,957,271)
Message 108969 - Posted: 17 Jul 2017 | 10:31:20 UTC

On 15 July 2017, 21:04:54 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime:

46776558^131072+1

The prime is 1,005,326 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 24th for Generalized Fermat primes and 240th overall.

The discovery was made by Giles Averay-Jones (Dingo) of Australia using an AMD Radeon 7700 series GPU in an Intel(R) Core(TM) i7-4771 CPU at 3.60GHz with 16GB RAM, running Microsoft Windows 10 Core Edition. This GPU took about 41 minutes to probable prime (PRP) test with GeneferOCL2. Giles is a member of the BOINC@AUSTRALIA team.

The prime was verified on 15 July 2017, 22:10:39 UTC by Dirk Sellsted (Dirk Sellsted) of Canada using an Nvidia Geforce GTX 1080 Ti GPU in an AMD Ryzen 7 1800X CPU with 32GB RAM, running Microsoft Windows 10 Core Edition. This GPU took about 6 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 45 minutes to complete the primality test using LLR.

For more details, please see the official announcement.

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Message boards : News : Yet Another GFN-131072 Mega Prime!

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