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
977983277Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
115480265348171443.42008-06-02 05:27:18
15166856489925856811960.42015-12-29 08:56:02
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 1516685648992585681 / TF: 1-62