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
681925177Factored
FactorDigitsBitsDate
5218680138860468506812168.82018-06-05 19:18:33
History
DateUserTypeResult
2018-06-05ConductorF
Factor: 521868013886046850681 / TF: 68-69
2016-10-23sasakiNF
no factor from 2^67 to 2^68
2014-07-29sasakiNF
no factor from 2^66 to 2^67
2014-01-22sasakiNF
no factor from 2^65 to 2^66