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Message boards : News : GFN-524288 Mega Prime!

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Profile Michael GoetzProject donor
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Turquoise: Earned 5,000,000 credits (9,206,509)PSP LLR Turquoise: Earned 5,000,000 credits (5,098,748)SoB LLR Sapphire: Earned 20,000,000 credits (34,221,148)SR5 LLR Turquoise: Earned 5,000,000 credits (8,293,415)SGS LLR Ruby: Earned 2,000,000 credits (2,014,138)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (5,626,112)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)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 Jade: Earned 10,000,000 credits (10,114,260)GFN Emerald: Earned 50,000,000 credits (66,792,810)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 129007 - Posted: 26 Apr 2019 | 12:30:54 UTC

On 17 Apr 2019, 11:00:27 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime:

2788032^524288+1

The prime is 3,379,193 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 3rd for Generalized Fermat primes and 26th overall.

The discovery was made by Ed Goforth (BlisteringSheep) of the Netherlands Antilles using an NVIDIA GeForce GTX 760 in an Intel(R) Xeon(R) CPU E5-2687W v3 @ 3.10GHz CPU with 128GB RAM, running Linux. This GPU took about 3 hours 31 minutes to probable prime (PRP) test with GeneferOCL5. Ed is a member of the Christians team.

The prime was verified on 23 Apr 2019, 13:36:35 by Brent Schneider (KWSN-SpongeBob SquarePants) of Nepal using an NVIDIA GeForce GTX 1080 in an Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz with 16GB RAM, running Windows 10. This GPU took about 1 hour 17 minutes to probable prime (PRP) test with GeneferOCL5. Brent is a member of The Knights Who Say Ni! team.

The PRP was confirmed prime by an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 16GB RAM, running Windows 10. This computer took about 25 hours 4 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-524288 Mega Prime!

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