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
977230399Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
43232360138032331651.92008-06-11 00:31:50
40797982605126074871961.82015-12-23 16:15:00
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 4079798260512607487 / TF: 1-62