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
189437189Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2888672197451180709292168.02015-08-26 05:55:07
History
DateUserTypeResult
2015-08-26demfloroF
Factor: 288867219745118070929 / TF: 66-68
2013-06-02sasaki3NF
no factor from 2^65 to 2^66
2011-04-08sasaki3NF
no factor from 2^64 to 2^65
2010-08-02Grant McCrackenNF
no factor from 2^63 to 2^64