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
977442449Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
131974279463991443.62008-05-30 06:08:12
38318934900772458471961.72015-12-23 16:51:10
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 3831893490077245847 / TF: 1-62