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
731981209Factored
FactorDigitsBitsDate
16313131670028402055612270.52018-02-26 09:58:56
History
DateUserTypeResult
2018-02-26Daniil TsarkovF
Factor: 1631313167002840205561 / TF: 70-71
2014-08-07monstNF
no factor from 2^66 to 2^70
2013-09-08america64NF
no factor from 2^65 to 2^66
2011-05-04monstNF
no factor from 2^64 to 2^65
2010-06-24Architects CubedNF
no factor from 2^63 to 2^64