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
695569547Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4478164079910422521372168.62017-07-12 10:56:53
History
DateUserTypeResult
2017-07-12ConductorF
Factor: 447816407991042252137 / TF: 68-69
2014-08-31sasakiNF
no factor from 2^66 to 2^68
2013-11-26sasakiNF
no factor from 2^65 to 2^66
2012-01-27laleraNF
no factor from 2^64 to 2^65
2010-07-17Architects CubedNF
no factor from 2^63 to 2^64