Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
257656519Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3369144544707430677132168.22018-06-19 11:32:48
History
DateUserTypeResult
2025-03-14James HeinrichF
Factor: 336914454470743067713 / TF: 68-70
2018-06-19NickF
Factor: 336914454470743067713 / TF: 68-69
2016-05-18XZTNF
no factor from 2^67 to 2^68
2015-12-17Dave BellNF
no factor from 2^66 to 2^67
2013-11-16haphaeuNF
no factor from 2^65 to 2^66
2011-08-07RichardNF
no factor from 2^64 to 2^65
2010-03-10lindedNF
no factor from 2^63 to 2^64
2010-03-10lindedNF
no factor from 2^62 to 2^63