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
619041947Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4148906603432502916572168.52016-09-29 04:27:51
History
DateUserTypeResult
2016-09-29NipalF
Factor: 414890660343250291657 / TF: 67-70
2014-03-15sasakiNF
no factor from 2^65 to 2^67
2012-01-15sasaki3NF
no factor from 2^64 to 2^65
2010-08-02Architects CubedNF
no factor from 2^63 to 2^64