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
245868877Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
977801668651312756632066.42015-12-10 11:19:37
History
DateUserTypeResult
2015-12-10ConductorF
Factor: 97780166865131275663 / TF: 66-67
2013-11-15Team_InspectorNF
no factor from 2^65 to 2^66
2011-07-18Andrew BNF
no factor from 2^64 to 2^65