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
218091583Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
38082166673934164401992271.72019-07-17 03:28:56
History
DateUserTypeResult
2019-07-17Smok_bmv F
Factor: 3808216667393416440199 / TF: 71-72*
2019-07-17Smok_bmv NF
no factor from 2^70 to 2^71
2019-01-13YxinityNF
no factor from 2^69 to 2^70
2018-01-24ANONYMOUSNF
no factor from 2^68 to 2^69
2016-09-10DerekNF
no factor from 2^67 to 2^68
2015-10-23Carlos AguiloNF
no factor from 2^66 to 2^67
2012-07-26america64NF
no factor from 2^65 to 2^66
2011-06-03RichardNF
no factor from 2^64 to 2^65