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
627405271Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2195784467773275970872167.62016-10-17 03:57:14
History
DateUserTypeResult
2016-10-17NipalF
Factor: 219578446777327597087 / TF: 67-70
2014-04-19sasakiNF
no factor from 2^65 to 2^67
2012-01-18sasaki3NF
no factor from 2^64 to 2^65
2010-08-03Architects CubedNF
no factor from 2^63 to 2^64