Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
208554421Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6678129978116087399032169.22015-10-15 05:55:04
History
DateUserTypeResult
2015-10-15demfloroF
Factor: 667812997811608739903 / TF: 69-70
2015-10-15demfloroNF
no factor from 2^68 to 2^69
2015-10-15demfloroNF
no factor from 2^66 to 2^68
2013-08-07OS1NF
no factor from 2^65 to 2^66
2011-05-16subgeniusNF
no factor from 2^64 to 2^65