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
977554153Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
8286061818156971549.62008-06-11 00:37:17
34974668937434351211961.62015-12-23 17:35:44
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 3497466893743435121 / TF: 1-62