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
684289087Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5217641262955075495512168.82018-06-18 19:41:02
History
DateUserTypeResult
2018-06-18ConductorF
Factor: 521764126295507549551 / TF: 68-69
2016-09-29MonoryNF
no factor from 2^67 to 2^68
2014-08-04sasakiNF
no factor from 2^66 to 2^67
2014-02-03sasakiNF
no factor from 2^65 to 2^66