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
977175761Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
232235591359271444.42008-06-02 06:09:10
18566651060806667691960.72015-12-23 15:58:54
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1856665106080666769 / TF: 1-62