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
627107641Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2172494983674375418972167.62016-10-13 19:05:00
History
DateUserTypeResult
2016-10-13NipalF
Factor: 217249498367437541897 / TF: 67-70
2014-04-18sasakiNF
no factor from 2^66 to 2^67
2014-04-18sasakiNF
no factor from 2^65 to 2^66
2012-01-18tscNF
no factor from 2^64 to 2^65
2010-07-31Architects CubedNF
no factor from 2^63 to 2^64