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
977312411Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
19546248231030.92008-06-01 01:33:53
23153819759373889271961.02015-12-23 16:27:45
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2315381975937388927 / TF: 1-62