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
678778391Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4265652335797373128392168.52018-05-25 10:15:31
History
DateUserTypeResult
2018-05-25ConductorF
Factor: 426565233579737312839 / TF: 68-69
2016-10-24ANONYMOUSNF
no factor from 2^67 to 2^68
2014-07-30sasakiNF
no factor from 2^66 to 2^67
2014-01-12sasakiNF
no factor from 2^65 to 2^66