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
197454307Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4337243803438448000332168.62015-09-18 20:55:09
History
DateUserTypeResult
2015-09-18demfloroF
Factor: 433724380343844800033 / TF: 68-69
2015-09-18demfloroNF
no factor from 2^66 to 2^68
2013-07-01MucolNF
no factor from 2^65 to 2^66
2011-04-24vapaddyNF
no factor from 2^64 to 2^65
2010-08-08Torchwood InstituteNF
no factor from 2^63 to 2^64