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
627370067Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1987364288739966197772167.42016-10-05 04:22:00
History
DateUserTypeResult
2016-10-05NipalF
Factor: 198736428873996619777 / 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