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
663204067Factored
FactorDigitsBitsDate
4012873353852457276812168.42018-02-25 06:44:33
History
DateUserTypeResult
2018-02-25ConductorF
Factor: 401287335385245727681 / TF: 68-69
2017-02-05sasakiNF
no factor from 2^67 to 2^68
2014-04-19sasakiNF
no factor from 2^66 to 2^67
2013-12-20sasakiNF
no factor from 2^65 to 2^66
2012-01-24sasaki3NF
no factor from 2^64 to 2^65
2010-06-21Architects CubedNF
no factor from 2^63 to 2^64