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
198485407Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3729942567435322273932168.32017-09-11 08:58:37
History
DateUserTypeResult
2025-03-14James HeinrichF
Factor: 372994256743532227393 / TF: 68-70
2017-09-11NickF
Factor: 372994256743532227393 / TF: 68-69
2016-08-14XZTNF
no factor from 2^67 to 2^68
2015-09-07rob147147NF
no factor from 2^66 to 2^67
2013-07-05Grant McCrackenNF
no factor from 2^65 to 2^66
2011-04-26OS1NF
no factor from 2^64 to 2^65
2010-08-091997rj7NF
no factor from 2^63 to 2^64