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
217763261Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6522219709070515292632169.12019-02-13 12:08:15
History
DateUserTypeResult
2025-03-28James HeinrichF
Factor: 652221970907051529263 / TF: 69-70
2024-05-22Naegi MakotoNF
no factor from 2^68 to 2^69
2019-02-13NickF
Factor: 652221970907051529263 / TF: 69-70
2018-01-19Dominik RadlerNF
no factor from 2^68 to 2^69
2016-09-09-Anonymous-NF
no factor from 2^67 to 2^68
2015-10-23mikeblasNF
no factor from 2^66 to 2^67
2012-07-30america64NF
no factor from 2^65 to 2^66
2011-05-31PiepenNF
no factor from 2^64 to 2^65