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
681714947Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5162131841313869392332168.82018-06-04 16:24:19
History
DateUserTypeResult
2018-06-04ConductorF
Factor: 516213184131386939233 / TF: 68-69
2016-10-18sasakiNF
no factor from 2^67 to 2^68
2014-08-01sasakiNF
no factor from 2^66 to 2^67
2014-01-20sasakiNF
no factor from 2^65 to 2^66