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Message boards : Proth Prime Search : DIV?

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Jim WilkinsProject donor
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Joined: 4 Sep 07
Posts: 225
ID: 11784
Credit: 113,785,756
RAC: 120,402
321 LLR Ruby: Earned 2,000,000 credits (4,017,273)Cullen LLR Ruby: Earned 2,000,000 credits (4,020,700)ESP LLR Ruby: Earned 2,000,000 credits (4,021,814)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (4,024,155)PPS LLR Ruby: Earned 2,000,000 credits (3,820,316)PSP LLR Turquoise: Earned 5,000,000 credits (5,021,680)SoB LLR Turquoise: Earned 5,000,000 credits (5,380,169)SR5 LLR Ruby: Earned 2,000,000 credits (4,003,787)SGS LLR Ruby: Earned 2,000,000 credits (3,362,283)TRP LLR Ruby: Earned 2,000,000 credits (4,000,120)Woodall LLR Ruby: Earned 2,000,000 credits (4,189,527)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,010,304)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,004)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,001,945)PPS Sieve Sapphire: Earned 20,000,000 credits (33,320,387)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,010,599)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,124,676)AP 26/27 Jade: Earned 10,000,000 credits (12,794,589)GFN Jade: Earned 10,000,000 credits (15,461,716)
Message 155950 - Posted: 16 Jun 2022 | 18:03:40 UTC

What is PPS DIV?
____________
Thanks,
Jim

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Michael MillerickProject donor
Volunteer tester
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Joined: 4 Feb 09
Posts: 918
ID: 35074
Credit: 777,778,526
RAC: 1,045,664
Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,068,130)Cullen LLR Turquoise: Earned 5,000,000 credits (5,579,447)ESP LLR Sapphire: Earned 20,000,000 credits (20,186,009)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,968,764)PPS LLR Sapphire: Earned 20,000,000 credits (26,279,208)PSP LLR Turquoise: Earned 5,000,000 credits (6,047,646)SoB LLR Turquoise: Earned 5,000,000 credits (5,787,781)SR5 LLR Emerald: Earned 50,000,000 credits (55,441,081)SGS LLR Turquoise: Earned 5,000,000 credits (5,116,983)TRP LLR Turquoise: Earned 5,000,000 credits (5,314,541)Woodall LLR Turquoise: Earned 5,000,000 credits (5,529,510)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,440,175)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,911,344)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Emerald: Earned 50,000,000 credits (50,449,372)GFN Double Silver: Earned 200,000,000 credits (207,416,190)WW Double Silver: Earned 200,000,000 credits (250,000,000)PSA Emerald: Earned 50,000,000 credits (52,866,806)
Message 155951 - Posted: 16 Jun 2022 | 18:16:53 UTC

It was an effort targeted at searching for Fermat divisors. You can read more about it in its forum section:
http://www.primegrid.com/forum_forum.php?id=121
____________

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Jim WilkinsProject donor
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Joined: 4 Sep 07
Posts: 225
ID: 11784
Credit: 113,785,756
RAC: 120,402
321 LLR Ruby: Earned 2,000,000 credits (4,017,273)Cullen LLR Ruby: Earned 2,000,000 credits (4,020,700)ESP LLR Ruby: Earned 2,000,000 credits (4,021,814)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (4,024,155)PPS LLR Ruby: Earned 2,000,000 credits (3,820,316)PSP LLR Turquoise: Earned 5,000,000 credits (5,021,680)SoB LLR Turquoise: Earned 5,000,000 credits (5,380,169)SR5 LLR Ruby: Earned 2,000,000 credits (4,003,787)SGS LLR Ruby: Earned 2,000,000 credits (3,362,283)TRP LLR Ruby: Earned 2,000,000 credits (4,000,120)Woodall LLR Ruby: Earned 2,000,000 credits (4,189,527)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,010,304)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,004)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,001,945)PPS Sieve Sapphire: Earned 20,000,000 credits (33,320,387)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,010,599)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,124,676)AP 26/27 Jade: Earned 10,000,000 credits (12,794,589)GFN Jade: Earned 10,000,000 credits (15,461,716)
Message 155954 - Posted: 16 Jun 2022 | 19:34:33 UTC - in response to Message 155951.

Thanks.

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Profile JeppeSNProject donor
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Joined: 5 Apr 14
Posts: 1780
ID: 306875
Credit: 48,121,586
RAC: 13,852
Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (18,449,699)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (210,142)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (476,246)Woodall LLR Silver: Earned 100,000 credits (281,400)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (4,636,807)WW Jade: Earned 10,000,000 credits (13,756,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 155955 - Posted: 16 Jun 2022 | 20:15:39 UTC

And the subproject does not exist for the moment. It was completed and closed.

But who knows if it can be revived one day?

We know PPS "regular" is getting closer to the megaprime region. When it arrives there, something has to happen because it "collides" with a block of numbers we already tested earlier. What will be done is not entirely clear yet. But they could decide to make a DIV-ish subproject again. Characteristic for DIV is to include only small k because small k mean big chances to find a divisor of a Fermat number (2^(2^m) + 1).

/JeppeSN

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Message boards : Proth Prime Search : DIV?

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