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
207265951Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1022631137944989572172166.52015-10-20 12:35:38
History
DateUserTypeResult
2015-10-20ConductorF
Factor: 102263113794498957217 / TF: 66-67
2013-08-03HBendtzNF
no factor from 2^65 to 2^66
2011-05-11ZIM30NF
no factor from 2^64 to 2^65