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
627147623Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6656089738203331686012169.22016-10-14 04:05:07
History
DateUserTypeResult
2016-10-14NipalF
Factor: 665608973820333168601 / TF: 67-70
2014-05-10sasakiNF
no factor from 2^65 to 2^67
2012-01-18larryh57NF
no factor from 2^64 to 2^65
2010-08-02Architects CubedNF
no factor from 2^63 to 2^64