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
199993187Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3205002593087377130712168.12017-09-16 21:33:26
History
DateUserTypeResult
2024-03-07James HeinrichF
Factor: 320500259308737713071 / TF: 68-72
2017-09-16Alex_soldierF
Factor: 320500259308737713071 / TF: 68-69*
2016-05-02Dominik RadlerNF
no factor from 2^67 to 2^68
2015-09-12rob147147NF
no factor from 2^66 to 2^67
2013-07-11tscNF
no factor from 2^65 to 2^66
2011-04-29tscNF
no factor from 2^64 to 2^65
2010-09-191997rj7NF
no factor from 2^63 to 2^64