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Message boards : News : TRP Mega Prime!

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Scott BrownProject donor
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Joined: 17 Oct 05
Posts: 1704
ID: 1178
Credit: 5,092,640,398
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Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 11 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 Emerald: Earned 50,000,000 credits (80,326,746)Cullen LLR Emerald: Earned 50,000,000 credits (56,029,731)ESP LLR Emerald: Earned 50,000,000 credits (96,178,683)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (102,075,655)PPS LLR Double Silver: Earned 200,000,000 credits (294,668,820)PSP LLR Emerald: Earned 50,000,000 credits (74,170,654)SoB LLR Double Bronze: Earned 100,000,000 credits (116,841,417)SR5 LLR Double Bronze: Earned 100,000,000 credits (117,770,226)SGS LLR Double Bronze: Earned 100,000,000 credits (142,252,516)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (109,149,031)Woodall LLR Emerald: Earned 50,000,000 credits (53,866,823)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 (205,186,056)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,051,551,028)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 (100,770,267)GFN Double Gold: Earned 500,000,000 credits (737,364,009)PSA Double Silver: Earned 200,000,000 credits (257,080,048)
Message 80293 - Posted: 14 Oct 2014 | 11:31:41 UTC
Last modified: 17 Oct 2014 | 0:45:55 UTC

On 2 October 2014, 3:02:44 UTC, PrimeGrid’s The Riesel Problem project eliminated k=402539 by finding the mega prime:

402539*2^7173024-1

The prime is 2,159,301 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 20th overall. This is the largest prime found in The Riesel Problem and PrimeGrid's 13th elimination. 51 k's now remain.

The discovery was made by Walter Darimont (Walter Darimont) of Belgium using an Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz with 4 GB RAM running Linux. This computer took about 11 hours and 10 minutes to complete the primality test using LLR. Walter is a member of the Aggie the Pew Team.

The prime was verified on 2 October 2014, 9:51:42 UTC, by Tom Greer (tng*) of the United States using an Intel(R) Xeon(R) CPU E5520 @ 2.27GHz with 24 GB RAM running Microsoft Windows 7 Professional. This computer took about 25 hours and 35 minutes to complete the primality test using LLR. Tom is a member of the Sicituradastra. Team.


For more details, please see the official announcement.

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Joined: 5 Jan 14
Posts: 284
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Credit: 5,391,192
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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 80304 - Posted: 15 Oct 2014 | 7:54:02 UTC - in response to Message 80293.

Well done Walter ! :) And Tom for the double check.
Thanks Scott for the news.
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Message boards : News : TRP Mega Prime!

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