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
208742909Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4144939334022107501992168.52017-10-30 19:25:12
History
DateUserTypeResult
2025-03-23James HeinrichF
Factor: 414493933402210750199 / TF: 68-70
2017-10-30NickF
Factor: 414493933402210750199 / TF: 68-69
2016-09-03-Anonymous-NF
no factor from 2^67 to 2^68
2015-10-10vwflat4NF
no factor from 2^66 to 2^67
2013-08-07MucolNF
no factor from 2^65 to 2^66
2011-05-13sasaki3NF
no factor from 2^64 to 2^65