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
977976677Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
10170957440811339.92008-06-01 01:59:03
15605238662722258571960.42015-12-29 08:54:29
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 1560523866272225857 / TF: 1-62