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
977319509Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
2599476071934975131857.92008-06-11 00:35:50
39494801815078609911961.82015-12-23 16:29:02
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 3949480181507860991 / TF: 1-62