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
198257671Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
45500861990464733878812271.92019-05-17 18:15:54
History
DateUserTypeResult
2019-05-17manrusF
Factor: 4550086199046473387881 / TF: 71-72
2015-09-28Andrew BNF
no factor from 2^70 to 2^71
2015-09-26Andrew BNF
no factor from 2^69 to 2^70
2015-09-26Andrew BNF
no factor from 2^67 to 2^69
2015-09-26RichardNF
no factor from 2^66 to 2^67
2013-07-05GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-04-26Olympic CollegeNF
no factor from 2^64 to 2^65
2010-08-091997rj7NF
no factor from 2^63 to 2^64