Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
685145971Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4288809812532465374172168.52018-06-22 17:21:36
History
DateUserTypeResult
2018-06-22ConductorF
Factor: 428880981253246537417 / TF: 68-69
2016-12-11NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-31sasakiNF
no factor from 2^66 to 2^67
2014-02-05-Anonymous-NF
no factor from 2^65 to 2^66
2012-02-01tscNF
no factor from 2^64 to 2^65
2010-07-13Architects CubedNF
no factor from 2^63 to 2^64