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Message boards : News : SR5 Mega Prime!

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Van ZimmermanProject donor
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Project scientist
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Joined: 30 Aug 12
Posts: 1770
ID: 168418
Credit: 4,281,007,702
RAC: 4,970,944
Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (12,590,282)Cullen LLR Jade: Earned 10,000,000 credits (11,383,059)ESP LLR Jade: Earned 10,000,000 credits (10,638,315)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (12,547,227)PPS LLR Sapphire: Earned 20,000,000 credits (20,103,970)PSP LLR Jade: Earned 10,000,000 credits (19,849,788)SoB LLR Sapphire: Earned 20,000,000 credits (21,208,789)SR5 LLR Jade: Earned 10,000,000 credits (13,730,961)SGS LLR Jade: Earned 10,000,000 credits (11,288,503)TRP LLR Jade: Earned 10,000,000 credits (19,385,621)Woodall LLR Jade: Earned 10,000,000 credits (12,964,368)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,199,057)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (50,573,887)GFN Double Ruby: Earned 2,000,000,000 credits (2,804,980,955)PSA Double Bronze: Earned 100,000,000 credits (168,236,054)
Message 109653 - Posted: 28 Aug 2017 | 12:38:18 UTC

On 25 August 2017, 04:39:57 UTC, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=171362 by finding the mega prime:

171362*5^2400996-1

The prime is 1,678,230 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 57th overall. 73 k's now remain in the Riesel Base 5 Problem.

The discovery was made by Frank Schwegler (Frank Schwegler) of the United States using an Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz with 16GB RAM running Microsoft Windows 7 Ultimate Edition. This computer took about 40 hours 12 minutes to complete the primality test using LLR.

The prime was verified on 26 August 2017 04:44:17 UTC by Sam Omlotek (SamO) of the United States using an Intel(R) Core(TM) i5-2500S CPU @ 2.70GHz with 8GB RAM, running macOS Sierra. This computer took about 44 hours 35 minutes to complete the primality test using LLR. Sam is a member of the DONTPANIC team.

For more details, please see the official announcement.

Vitaly
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Joined: 24 Sep 12
Posts: 35
ID: 173343
Credit: 12,479,035
RAC: 2,717
ESP LLR Silver: Earned 100,000 credits (285,317)PPS LLR Bronze: Earned 10,000 credits (10,134)PSP LLR Amethyst: Earned 1,000,000 credits (1,080,134)SoB LLR Turquoise: Earned 5,000,000 credits (7,075,547)TRP LLR Bronze: Earned 10,000 credits (46,141)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (364,372)PPS Sieve Ruby: Earned 2,000,000 credits (3,367,629)TRP Sieve (suspended) Bronze: Earned 10,000 credits (22,458)GFN Silver: Earned 100,000 credits (223,935)
Message 109674 - Posted: 28 Aug 2017 | 23:38:48 UTC - in response to Message 109653.

Cool,

We didn't see such prime for a year

PatrikEriksson
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Joined: 15 Feb 17
Posts: 1
ID: 491365
Credit: 10,236,419
RAC: 20,104
Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,202,692)PSP LLR Turquoise: Earned 5,000,000 credits (5,348,227)SGS LLR Bronze: Earned 10,000 credits (20,196)TRP LLR Amethyst: Earned 1,000,000 credits (1,434,072)Woodall LLR Silver: Earned 100,000 credits (354,260)Generalized Cullen/Woodall Sieve Bronze: Earned 10,000 credits (28,948)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,474,142)AP 26/27 Silver: Earned 100,000 credits (291,096)PSA Bronze: Earned 10,000 credits (82,661)
Message 109675 - Posted: 29 Aug 2017 | 5:09:52 UTC

Awsome.

Those are the primes I like to see.

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Message boards : News : SR5 Mega Prime!

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