Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
77317967Factored
FactorDigitsBitsDate
1874061149175401889993112477.32016-02-27 18:53:55
P-1 factors
DateFactorB1B2
2016-02-271874061149175401889993116550000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^61 to 2^64
2016-02-27baseyF-PM1
Factor: 187406114917540188999311 / (P-1, B1=655000)
2016-02-17AirSquirrelsNF
no factor from 2^74 to 2^75
2016-02-17AirSquirrelsNF
no factor from 2^73 to 2^74
2015-11-04RichD0NF
no factor from 2^72 to 2^73
2015-06-10ChuckNF
no factor from 2^71 to 2^72
2012-12-30Florimond C.NF
no factor from 2^70 to 2^71
2010-11-14Charles A. MorrisNF
no factor from 2^69 to 2^70
2010-11-11sunithayaNF
no factor from 2^68 to 2^69
2010-10-10Hollie L Buchanan IINF
no factor from 2^67 to 2^68
2010-10-06ManuelJCNF
no factor from 2^66 to 2^67
2010-10-04-Anonymous-NF
no factor from 2^65 to 2^66
2010-09-30GrunwalderGIMPNF
no factor from 2^64 to 2^65