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
685853851Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3992094109985031624012168.42018-06-27 05:33:42
History
DateUserTypeResult
2018-06-27ConductorF
Factor: 399209410998503162401 / TF: 68-69
2016-12-08NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-05sasakiNF
no factor from 2^66 to 2^67
2014-02-07sasakiNF
no factor from 2^65 to 2^66