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
977168627Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3986847998171238.52008-06-01 01:27:15
25707203181813637431961.22015-12-23 15:57:35
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2570720318181363743 / TF: 1-62