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Message boards : News : PPS MEGA Prime Found!

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Scott BrownProject donor
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Joined: 17 Oct 05
Posts: 1769
ID: 1178
Credit: 5,531,796,388
RAC: 2,160,077
Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 12 mega primesEliminated 6 conjecture "k"sDiscovered 1 Sophie Germain pairDiscovered 1 Fermat divisor2012 Tour de Primes highest prime count2012 Tour de Primes most Mountain Stage primes2015 Tour de Primes highest prime count2016 Tour de Primes highest prime countFound 23 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 2 primes in the 2018 Tour de Primes Mountain Stage321 LLR Double Bronze: Earned 100,000,000 credits (100,829,118)Cullen LLR Double Bronze: Earned 100,000,000 credits (103,870,990)ESP LLR Double Bronze: Earned 100,000,000 credits (103,603,483)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (102,075,655)PPS LLR Double Silver: Earned 200,000,000 credits (303,052,366)PSP LLR Emerald: Earned 50,000,000 credits (88,692,247)SoB LLR Double Bronze: Earned 100,000,000 credits (116,841,417)SR5 LLR Double Bronze: Earned 100,000,000 credits (129,423,098)SGS LLR Double Bronze: Earned 100,000,000 credits (148,139,564)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (109,149,031)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,356,263)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,322,150)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (83,794,448)Generalized Cullen/Woodall Sieve Double Silver: Earned 200,000,000 credits (240,468,300)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,105,665,691)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Double Silver: Earned 200,000,000 credits (203,523,358)TRP Sieve (suspended) Double Silver: Earned 200,000,000 credits (201,489,157)AP 26/27 Double Bronze: Earned 100,000,000 credits (119,533,830)GFN Double Gold: Earned 500,000,000 credits (902,983,417)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 82469 - Posted: 14 Jan 2015 | 1:17:59 UTC

On 6 January 2015, 18:51:43 UTC, PrimeGrid’s Mega Prime Search found the Mega Prime:

177*2^3411847+1

The prime is 1,027,071 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 107th overall.

The discovery was made by William Darney (William J. Darney (G46VW)) of the United States using an AMD Phenom(tm) II X6 1090T with 16GB RAM running Microsoft Windows 7 Professional. This computer took about 3 hour 42 minutes to complete the primality test using LLR. William is a member of the LinusTechTips_Team team.

The prime was verified on 6 January 2015, 23:32:13 UTC, by Michael Becker (Nasicus) of Germany using an Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz with 32 GB RAM running Microsoft Windows Server 2012 R2 Standard Edition. This computer took about 2 hours and 49 minutes to complete the primality test using LLR. Michael is a member of the Crunchers@Freiburg team.


For more details, please see the official announcement.

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Message boards : News : PPS MEGA Prime Found!

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