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
977444749Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
1695514759405371547.32008-05-30 06:09:50
15055814002952787111960.42015-12-23 16:51:39
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1505581400295278711 / TF: 1-62