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Message boards : News : GFN-524288 Find!

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Scott BrownProject donor
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Joined: 17 Oct 05
Posts: 2053
ID: 1178
Credit: 7,729,146,380
RAC: 11,104,950
Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 25 mega primesEliminated 7 conjecture "k"sDiscovered 1 Sophie Germain pairDiscovered 2 Fermat divisors2012 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 Stage2019 Tour de Primes highest prime countFound 22 primes in the 2019 Tour de Primes2020 Tour de Primes highest prime scoreFound 21 primes in the 2020 Tour de PrimesFound 4 mega primes in the 2020 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (132,982,638)Cullen LLR Double Bronze: Earned 100,000,000 credits (103,870,990)ESP LLR Double Bronze: Earned 100,000,000 credits (192,238,963)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (109,544,446)PPS LLR Double Gold: Earned 500,000,000 credits (612,542,722)PSP LLR Double Bronze: Earned 100,000,000 credits (126,982,721)SoB LLR Double Bronze: Earned 100,000,000 credits (135,747,083)SR5 LLR Double Silver: Earned 200,000,000 credits (214,194,272)SGS LLR Double Bronze: Earned 100,000,000 credits (184,825,864)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (135,712,582)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,447,725)321 Sieve Double Silver: Earned 200,000,000 credits (210,818,608)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (83,794,448)Generalized Cullen/Woodall Sieve (suspended) Double Silver: Earned 200,000,000 credits (285,139,652)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,465,209,809)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 Silver: Earned 200,000,000 credits (285,195,755)GFN Double Amethyst: Earned 1,000,000,000 credits (1,684,655,517)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 140949 - Posted: 21 Jun 2020 | 16:12:45 UTC
Last modified: 23 Jun 2020 | 2:32:20 UTC

On 29 May 2020, 07:52:25 UTC, PrimeGrid's Generalized Fermat Prime Search found the Mega Prime:

3638450^524288+1

The prime is 3,439,810 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 3rd for Generalized Fermat primes and 35th overall.

The discovery was made by Wolfgang Schwieger (DeleteNull)of Germany using a GeForce RTX 2070 in an AMD Ryzen 7 3700X 8-Core Processor with 16GB RAM, running Linux openSUSE . This GPU took about 31 minutes to complete the probable prime (PRP) test using GeneferOCL5. Wolfgang Schwieger is a member of the SETI.Germany Team.

The PRP was verified on 29 May 2020, 08:23:51 UTC by Greg Miller (Olgar) of the United States using a gfx1010 in an AMD FX-8370 Eight-Core Processor with 16GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 1 hour, 3 minutes to complete the probable prime (PRP) test using GeneferOCL5. Greg Miller is a member of the USA Team.

The PRP was confirmed prime by an Intel(R) Xeon(R) CPU E3-1240 v6 @ 3.70GHz with 4GB RAM, running Linux Debian . This computer took about 1 day, 19 hours, 22 minutes to complete the primality test using LLR.

For more details, please see the official announcement.

Scott BrownProject donor
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Joined: 17 Oct 05
Posts: 2053
ID: 1178
Credit: 7,729,146,380
RAC: 11,104,950
Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 25 mega primesEliminated 7 conjecture "k"sDiscovered 1 Sophie Germain pairDiscovered 2 Fermat divisors2012 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 Stage2019 Tour de Primes highest prime countFound 22 primes in the 2019 Tour de Primes2020 Tour de Primes highest prime scoreFound 21 primes in the 2020 Tour de PrimesFound 4 mega primes in the 2020 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (132,982,638)Cullen LLR Double Bronze: Earned 100,000,000 credits (103,870,990)ESP LLR Double Bronze: Earned 100,000,000 credits (192,238,963)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (109,544,446)PPS LLR Double Gold: Earned 500,000,000 credits (612,542,722)PSP LLR Double Bronze: Earned 100,000,000 credits (126,982,721)SoB LLR Double Bronze: Earned 100,000,000 credits (135,747,083)SR5 LLR Double Silver: Earned 200,000,000 credits (214,194,272)SGS LLR Double Bronze: Earned 100,000,000 credits (184,825,864)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (135,712,582)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,447,725)321 Sieve Double Silver: Earned 200,000,000 credits (210,818,608)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (83,794,448)Generalized Cullen/Woodall Sieve (suspended) Double Silver: Earned 200,000,000 credits (285,139,652)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,465,209,809)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 Silver: Earned 200,000,000 credits (285,195,755)GFN Double Amethyst: Earned 1,000,000,000 credits (1,684,655,517)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 140950 - Posted: 21 Jun 2020 | 16:13:26 UTC


Apologies for the delayed news post. Real life work has been a bit overwhelming of late.

numbermaniac
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Credit: 4,947,308
RAC: 6,253
321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (899,704)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (303,982)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Gold: Earned 500,000 credits (500,739)PSA Silver: Earned 100,000 credits (140,044)
Message 140990 - Posted: 23 Jun 2020 | 2:08:10 UTC

Looks like there's a loose "quote" tag at the very beginning of the announcement.
____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Message boards : News : GFN-524288 Find!

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