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Message boards : News : SR5 Mega Prime - March 2016 Edition Version 2.0

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Scott BrownProject donor
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Joined: 17 Oct 05
Posts: 1750
ID: 1178
Credit: 5,464,969,838
RAC: 3,405,063
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 (103,702,522)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 (128,539,392)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 (100,539,349)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 (234,207,567)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,105,652,207)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 (101,275,642)GFN Double Gold: Earned 500,000,000 credits (875,150,886)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 93620 - Posted: 30 Mar 2016 | 2:34:56 UTC

On 15 March 2016, 18:24:24 UTC, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=92158 by finding the mega prime:

92158*5^2145024+1

The prime is 1,499,313 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 53rd overall. This is the largest known base 5 mega prime. 33 k's now remain in the Sierpinski Base 5 Problem.

The discovery was made by Karl Burridge (Aus_Karlos) of Australia using an Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz with 8GB RAM running Linux. This computer took about 43 hours 17 minutes to complete the primality test using LLR.

For more details, please see the official announcement.

[CSF] Thomas H.V. DupontProject donor
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Joined: 22 Jan 16
Posts: 414
ID: 436840
Credit: 23,309,464
RAC: 13,833
321 LLR Bronze: Earned 10,000 credits (18,114)Cullen LLR Bronze: Earned 10,000 credits (34,704)ESP LLR Bronze: Earned 10,000 credits (26,640)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (15,312)PPS LLR Bronze: Earned 10,000 credits (78,903)SoB LLR Silver: Earned 100,000 credits (121,578)SR5 LLR Bronze: Earned 10,000 credits (25,295)SGS LLR Gold: Earned 500,000 credits (507,221)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (113,599)PPS Sieve Jade: Earned 10,000,000 credits (17,893,268)TRP Sieve (suspended) Bronze: Earned 10,000 credits (26,191)AP 26/27 Silver: Earned 100,000 credits (371,956)GFN Amethyst: Earned 1,000,000 credits (1,602,963)PSA Ruby: Earned 2,000,000 credits (2,473,720)
Message 93648 - Posted: 30 Mar 2016 | 16:55:38 UTC - in response to Message 93620.

Congratulations to Karl!
Thanks Scott for the announcement.
____________
Founder of CRUNCHERS SANS FRONTIERES
www.crunchersansfrontieres.org
CSF lucky number 22872882^65536+1

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Message boards : News : SR5 Mega Prime - March 2016 Edition Version 2.0

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