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
975988709Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
2421857422060971547.82008-06-02 05:56:58
40270813786799461371961.82015-12-30 20:56:25
861782518931724701532066.22019-12-11 14:40:03
History
DateUserTypeResult
2022-08-01J.R. AllenNF
no factor from 2^62 to 2^66
2019-12-11TJAOIF
Factor: 86178251893172470153 / TF: 66-67
2015-12-30ConductorF
Factor: 4027081378679946137 / TF: 1-62