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Joined: 10 May 14
Posts: 240
ID: 311759
Credit: 269,843,211
RAC: 146,779
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,037,769)Cullen LLR Ruby: Earned 2,000,000 credits (3,541,849)ESP LLR Ruby: Earned 2,000,000 credits (2,053,710)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,046,240)PPS LLR Jade: Earned 10,000,000 credits (12,944,275)PSP LLR Turquoise: Earned 5,000,000 credits (5,022,331)SoB LLR Turquoise: Earned 5,000,000 credits (5,125,022)SR5 LLR Turquoise: Earned 5,000,000 credits (5,046,188)SGS LLR Ruby: Earned 2,000,000 credits (2,682,790)TRP LLR Ruby: Earned 2,000,000 credits (2,016,337)Woodall LLR Ruby: Earned 2,000,000 credits (2,012,569)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,211)Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,006,134)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (22,440,747)AP 26/27 Sapphire: Earned 20,000,000 credits (20,526,311)GFN Emerald: Earned 50,000,000 credits (83,111,276)WW (retired) Emerald: Earned 50,000,000 credits (50,172,000)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 155339 - Posted: 8 May 2022 | 14:08:39 UTC

On 8 January 2022, 20:46:05 UTC, PrimeGrid’s 321 Prime Search found the Mega Prime:

3*2^18196595-1

The prime is 5,477,722 digits long and has entered Chris Caldwell's “The Largest Known Primes Database” ranked 20th overall.

The discovery was made by an anonymous user of Poland using an Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz with 32GB RAM, running Microsoft Windows 10 Professional x64 edition. This computer took about 2 hours, 40 minutes to complete the primality test using LLR2.

For more details, please see the official announcement.

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Message boards : News : 321 Mega Prime!

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