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
207398069Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
786667792542152223132066.12015-10-23 19:23:09
History
DateUserTypeResult
2015-10-23ConductorF
Factor: 78666779254215222313 / TF: 66-67
2013-08-03lindeeNF
no factor from 2^65 to 2^66
2011-05-11dslNF
no factor from 2^64 to 2^65