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
977800861Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
6159363183611211549.12008-06-11 00:59:33
20268021768937750091960.82015-12-23 19:51:26
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 2026802176893775009 / TF: 1-62