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
198252391Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
38046175590092129048872271.72019-05-18 12:00:23
History
DateUserTypeResult
2019-05-18Samuel SchmidtF
Factor: 3804617559009212904887 / 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
2015-09-22Andrew BNF
no factor from 2^68 to 2^69
2015-09-21Andrew BNF
no factor from 2^67 to 2^68
2015-09-19tscNF
no factor from 2^66 to 2^67
2013-07-07RichardNF
no factor from 2^65 to 2^66
2011-04-26Sergej LevinNF
no factor from 2^64 to 2^65
2010-08-091997rj7NF
no factor from 2^63 to 2^64