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
688889807Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
7259369683036618791292169.32016-10-19 06:59:49
History
DateUserTypeResult
2016-10-19ConductorF
Factor: 725936968303661879129 / TF: 68-70
2016-10-18NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-08sasakiNF
no factor from 2^66 to 2^67
2014-02-22america64NF
no factor from 2^65 to 2^66