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
222721841Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4102130061717770992572168.52018-03-03 14:53:23
History
DateUserTypeResult
2025-03-19James HeinrichF
Factor: 410213006171777099257 / TF: 68-70
2018-03-03NickF
Factor: 410213006171777099257 / TF: 68-69
2016-09-11XZTNF
no factor from 2^67 to 2^68
2015-10-31loki1975NF
no factor from 2^66 to 2^67
2013-08-29MucolNF
no factor from 2^65 to 2^66
2011-06-09DerekNF
no factor from 2^64 to 2^65
2010-05-20Architects CubedNF
no factor from 2^63 to 2^64