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
977960453Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
85199914665371343.02008-06-01 01:58:20
27018963869440928811961.22015-12-29 08:51:36
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 2701896386944092881 / TF: 1-62