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
685601117Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4242721202059753640232168.52018-06-25 20:58:05
History
DateUserTypeResult
2018-06-25ConductorF
Factor: 424272120205975364023 / TF: 68-69
2016-12-10NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-04sasakiNF
no factor from 2^66 to 2^67
2014-02-07sasakiNF
no factor from 2^65 to 2^66