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
977917981Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
464115238451370071755.42008-06-11 01:21:15
18449114373394601691960.72015-12-29 08:40:35
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 1844911437339460169 / TF: 1-62