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
205025617Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5427672363690410490972168.92017-10-01 21:57:27
History
DateUserTypeResult
2025-03-24James HeinrichF
Factor: 542767236369041049097 / TF: 68-70
2017-10-01AlissonF
Factor: 542767236369041049097 / TF: 68-69
2016-08-27tscNF
no factor from 2^67 to 2^68
2015-10-03JoJo-SUN24NF
no factor from 2^66 to 2^67
2013-07-27tscNF
no factor from 2^65 to 2^66
2011-05-10RichardNF
no factor from 2^64 to 2^65
2010-05-04sasaki3NF
no factor from 2^63 to 2^64