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
977021251Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
355401250263771445.02008-05-27 23:16:30
11797868267807669591960.02015-12-22 19:35:17
History
DateUserTypeResult
2015-12-22ConductorF
Factor: 1179786826780766959 / TF: 1-62