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
977941477Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
58676488631032.52008-06-01 01:57:31
18599927957674644731960.72015-12-29 08:45:49
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 1859992795767464473 / TF: 1-62