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

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MnStatusDetails
195197557Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4552058625681411422392168.62016-12-07 19:46:42
History
DateUserTypeResult
2025-05-17beepF
Factor: 455205862568141142239 / TF: 68-72
2016-12-07Sergey NosovF
Factor: 455205862568141142239 / TF: 68-72*
2016-08-12rmaximusNF
no factor from 2^67 to 2^68
2015-09-11Robert FolzNF
no factor from 2^66 to 2^67
2013-06-26RichardNF
no factor from 2^65 to 2^66
2011-04-21RichardNF
no factor from 2^64 to 2^65
2010-08-31monstNF
no factor from 2^63 to 2^64