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
627786139Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2172232396015372132492167.62016-10-07 16:26:34
History
DateUserTypeResult
2016-10-07NipalF
Factor: 217223239601537213249 / TF: 67-70
2014-04-19sasakiNF
no factor from 2^65 to 2^67