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Message boards : News : Another MEGA Prime Found

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Scott BrownProject donor
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Joined: 17 Oct 05
Posts: 1750
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Credit: 5,470,711,021
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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 (103,719,533)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 (80,100,999)SoB LLR Double Bronze: Earned 100,000,000 credits (116,841,417)SR5 LLR Double Bronze: Earned 100,000,000 credits (129,032,046)SGS LLR Double Bronze: Earned 100,000,000 credits (143,876,598)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 (100,703,421)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 (234,451,669)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,105,662,320)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 (105,662,297)GFN Double Gold: Earned 500,000,000 credits (875,655,425)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 75173 - Posted: 5 Apr 2014 | 14:51:12 UTC

On 28 March 2014 21:32:37 UTC, PrimeGrid’s Mega Prime Search, through PRPNet, found the Mega Prime: 51*2^3490971+1

The prime is 1,050,889 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 69th overall.

The discovery was made by Stefan Larsson (288larsson) of Sweden using an Intel(R) Core(TM) i7-4930K CPU @ 3.40GHz with 16GB RAM running Microsoft Windows 8.1. This computer took just over 1 hour 13 minutes to complete the primality test using LLR. Stefan is a member of the Sicturadastra team.

For more details, please see the official announcement.

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Cullen LLR Bronze: Earned 10,000 credits (14,602)ESP LLR Bronze: Earned 10,000 credits (10,158)PPS LLR Bronze: Earned 10,000 credits (18,124)PSP LLR Bronze: Earned 10,000 credits (21,049)SoB LLR Bronze: Earned 10,000 credits (98,339)SR5 LLR Bronze: Earned 10,000 credits (12,188)SGS LLR Bronze: Earned 10,000 credits (62,305)TRP LLR Bronze: Earned 10,000 credits (17,022)PPS Sieve Turquoise: Earned 5,000,000 credits (5,137,404)
Message 75178 - Posted: 5 Apr 2014 | 16:22:15 UTC
Last modified: 5 Apr 2014 | 16:22:24 UTC

Well done Stefan ! Great job :)
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Message boards : News : Another MEGA Prime Found

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