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
977070469Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
27282396555350165591961.22015-12-22 20:52:25
32203255113575572331961.52009-11-29 00:14:12
History
DateUserTypeResult
2015-12-22ConductorF
Factor: 2728239655535016559 / TF: 1-62