Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
77289613Factored
FactorDigitsBitsDate
406877968084718321408172375.12015-09-06 11:12:56
P-1 factors
DateFactorB1B2
2015-09-06406877968084718321408176750000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^61 to 2^64
2015-09-06FilenF-PM1
Factor: 40687796808471832140817 / (P-1, B1=675000)
2015-09-01RichD0NF
no factor from 2^74 to 2^75
2015-08-261997rj7NF
no factor from 2^73 to 2^74
2015-08-261997rj7NF
no factor from 2^72 to 2^73
2015-06-08ChuckNF
no factor from 2^71 to 2^72
2014-02-21dufrenbkNF
no factor from 2^70 to 2^71
2010-12-20sannerud.comNF
no factor from 2^69 to 2^70
2010-12-16sannerud.comNF
no factor from 2^68 to 2^69
2010-12-16greg_plonkaNF
no factor from 2^67 to 2^68
2010-12-08Ken L.NF
no factor from 2^66 to 2^67
2010-12-06Helmut ZulusNF
no factor from 2^65 to 2^66
2010-12-01UgmNF
no factor from 2^64 to 2^65