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
187941311Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3256565710247032921372168.12017-07-19 06:48:24
History
DateUserTypeResult
2025-03-26James HeinrichF
Factor: 325656571024703292137 / TF: 68-70
2017-07-19NickF
Factor: 325656571024703292137 / TF: 68-69
2016-07-27rubikvn2100NF
no factor from 2^67 to 2^68
2015-08-21OS1NF
no factor from 2^66 to 2^67
2013-06-03dasZNF
no factor from 2^65 to 2^66
2011-04-05Mr-PlonkNF
no factor from 2^64 to 2^65
2010-07-31Mark GrantNF
no factor from 2^63 to 2^64