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
318351223Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3286908638580796595272168.22016-12-16 19:40:42
History
DateUserTypeResult
2025-03-08James HeinrichF
Factor: 328690863858079659527 / TF: 68-70
2016-12-16SarnetskyF
Factor: 328690863858079659527 / TF: 68-69*
2016-04-13SarnetskyNF
no factor from 2^67 to 2^68
2016-02-25W Klaus von MullerNF
no factor from 2^66 to 2^67
2014-07-28Judge HaleNF
no factor from 2^65 to 2^66
2011-11-15-Anonymous-NF
no factor from 2^64 to 2^65