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
687109259Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3943998966720466901272168.42018-07-03 18:57:33
History
DateUserTypeResult
2018-07-03ConductorF
Factor: 394399896672046690127 / TF: 68-69
2016-11-29NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-08sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66
2012-02-02sasaki3NF
no factor from 2^64 to 2^65