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Message boards : Prime Sierpinski Problem : 168451*2^19375200+1 is prime!

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Profile Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 12693
ID: 53948
Credit: 184,975,805
RAC: 184,560
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (4,202,866)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Ruby: Earned 2,000,000 credits (2,773,744)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (34,158,496)SR5 LLR Turquoise: Earned 5,000,000 credits (8,293,415)SGS LLR Ruby: Earned 2,000,000 credits (2,012,222)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (5,046,112)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (7,090,096)GFN Emerald: Earned 50,000,000 credits (64,594,991)PSA Jade: Earned 10,000,000 credits (10,597,947)
Message 110460 - Posted: 26 Sep 2017 | 15:10:15 UTC

... and thus the 2nd k in a year is eliminated from the Prime Sierpinski Problem. 9 k's remain, including 22699 and 67607 which are being searched as part of the Seventeen or Bust project.

(Last year's SoB prime eliminated a k which was prime, so it was part of both SoB and PSP.)


____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

rvoskoboynikov
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Joined: 4 May 17
Posts: 41
ID: 865286
Credit: 70,198,778
RAC: 0
Discovered 1 mega primeFound 1 prime in the 2018 Tour de Primes321 LLR Silver: Earned 100,000 credits (175,356)Cullen LLR Silver: Earned 100,000 credits (174,572)ESP LLR Silver: Earned 100,000 credits (121,328)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (341,146)PPS LLR Turquoise: Earned 5,000,000 credits (9,359,272)PSP LLR Silver: Earned 100,000 credits (141,489)SoB LLR Ruby: Earned 2,000,000 credits (2,143,146)SR5 LLR Silver: Earned 100,000 credits (162,872)SGS LLR Ruby: Earned 2,000,000 credits (2,021,102)TRP LLR Silver: Earned 100,000 credits (366,858)Woodall LLR Silver: Earned 100,000 credits (217,132)Generalized Cullen/Woodall Sieve Gold: Earned 500,000 credits (656,417)PPS Sieve Jade: Earned 10,000,000 credits (10,099,516)AP 26/27 Jade: Earned 10,000,000 credits (10,895,885)GFN Sapphire: Earned 20,000,000 credits (28,299,466)PSA Turquoise: Earned 5,000,000 credits (5,023,220)
Message 110467 - Posted: 26 Sep 2017 | 16:29:35 UTC - in response to Message 110460.

Congrats to the discoverer!

Profile JeppeSNProject donor
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Joined: 5 Apr 14
Posts: 882
ID: 306875
Credit: 10,502,146
RAC: 8,686
321 LLR Silver: Earned 100,000 credits (285,114)Cullen LLR Bronze: Earned 10,000 credits (98,851)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Amethyst: Earned 1,000,000 credits (1,893,206)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Bronze: Earned 10,000 credits (16,010)TRP LLR Bronze: Earned 10,000 credits (71,060)Woodall LLR Silver: Earned 100,000 credits (109,455)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 110477 - Posted: 26 Sep 2017 | 20:54:13 UTC - in response to Message 110467.

Congrats to the discoverer!


Congratulations to user paleseptember. /JeppeSN

Profile paleseptember
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Joined: 11 Jun 08
Posts: 15
ID: 23985
Credit: 190,028,880
RAC: 182,612
Discovered 1 mega primeEliminated 1 conjecture "k"321 LLR Amethyst: Earned 1,000,000 credits (1,061,830)Cullen LLR Amethyst: Earned 1,000,000 credits (1,767,319)ESP LLR Amethyst: Earned 1,000,000 credits (1,840,875)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (937,966)PPS LLR Amethyst: Earned 1,000,000 credits (1,508,252)PSP LLR Gold: Earned 500,000 credits (640,167)SoB LLR Ruby: Earned 2,000,000 credits (2,564,269)SR5 LLR Gold: Earned 500,000 credits (609,419)SGS LLR Amethyst: Earned 1,000,000 credits (1,075,510)TRP LLR Amethyst: Earned 1,000,000 credits (1,922,510)Woodall LLR Ruby: Earned 2,000,000 credits (2,029,885)Generalized Cullen/Woodall Sieve Amethyst: Earned 1,000,000 credits (1,047,973)PPS Sieve Double Bronze: Earned 100,000,000 credits (101,261,469)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (56,838)TRP Sieve (suspended) Gold: Earned 500,000 credits (809,757)AP 26/27 Sapphire: Earned 20,000,000 credits (40,381,484)GFN Sapphire: Earned 20,000,000 credits (30,254,616)PSA Silver: Earned 100,000 credits (260,965)
Message 110482 - Posted: 27 Sep 2017 | 8:31:51 UTC - in response to Message 110477.

Hooray! That's quite exciting :)

Brook HarsteProject donor
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Joined: 30 Nov 08
Posts: 1334
ID: 32401
Credit: 789,243,417
RAC: 249,852
Discovered 2 mega primesFound 1 prime in the 2019 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,067,502)Cullen LLR Turquoise: Earned 5,000,000 credits (5,010,955)ESP LLR Turquoise: Earned 5,000,000 credits (7,054,407)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,501,906)PPS LLR Sapphire: Earned 20,000,000 credits (23,842,320)PSP LLR Turquoise: Earned 5,000,000 credits (5,667,951)SoB LLR Jade: Earned 10,000,000 credits (12,120,365)SR5 LLR Turquoise: Earned 5,000,000 credits (8,636,723)SGS LLR Turquoise: Earned 5,000,000 credits (5,201,403)TRP LLR Turquoise: Earned 5,000,000 credits (5,628,223)Woodall LLR Turquoise: Earned 5,000,000 credits (5,061,985)321 Sieve Amethyst: Earned 1,000,000 credits (1,027,534)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (17,370,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,014,372)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,430,775)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,083,315)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,629,248)AP 26/27 Emerald: Earned 50,000,000 credits (53,108,848)GFN Double Silver: Earned 200,000,000 credits (278,228,603)PSA Double Silver: Earned 200,000,000 credits (200,556,062)
Message 110495 - Posted: 27 Sep 2017 | 17:07:53 UTC - in response to Message 110482.

Hooray! That's quite exciting :)

Monumental! Congrats!

If I find one this big I will get it printed on a poster with a microscopic font. I seen a Mersenne printed out once like that. You needed a loupe to view it.

Message boards : Prime Sierpinski Problem : 168451*2^19375200+1 is prime!

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