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
199471351Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3212059965574689509692168.12017-09-15 11:43:41
History
DateUserTypeResult
2025-03-24James HeinrichF
Factor: 321205996557468950969 / TF: 68-70
2017-09-15AlissonF
Factor: 321205996557468950969 / TF: 68-69
2016-06-24XZTNF
no factor from 2^67 to 2^68
2015-09-28RichardNF
no factor from 2^66 to 2^67
2013-07-09MucolNF
no factor from 2^65 to 2^66
2011-04-28ZIM30NF
no factor from 2^64 to 2^65
2010-08-291997rj7NF
no factor from 2^63 to 2^64