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
309799283Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2172249732195169470232167.62016-12-11 22:44:44
History
DateUserTypeResult
2016-12-11demfloroF
Factor: 217224973219516947023 / TF: 67-68
2016-02-19Adel El-AtawyNF
no factor from 2^66 to 2^67
2014-01-15ANONYMOUSNF
no factor from 2^65 to 2^66
2011-10-28Team_InspectorNF
no factor from 2^64 to 2^65