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
399985007Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1938273648110728688092167.42016-09-21 04:53:30
History
DateUserTypeResult
2016-09-21Alex_soldierF
Factor: 193827364811072868809 / TF: 67-68*
2016-04-09DerekNF
no factor from 2^66 to 2^67
2014-06-09RichardNF
no factor from 2^65 to 2^66
2010-05-05Architects CubedNF
no factor from 2^64 to 2^65