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
800019137Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18655411141342905148972270.72019-10-30 21:45:52
History
DateUserTypeResult
2019-10-30ConductorF
Factor: 1865541114134290514897 / TF: 70-71
2016-07-19ramgeisNF
no factor from 2^69 to 2^70
2015-03-20BJBNF
no factor from 2^68 to 2^69
2014-05-05Gordon SpenceNF
no factor from 2^66 to 2^68
2013-10-17america64NF
no factor from 2^65 to 2^66
2010-09-23Architects CubedNF
no factor from 2^64 to 2^65