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
172825883Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
37549673940162530154492271.72019-03-11 04:35:12
History
DateUserTypeResult
2019-03-11Smok_bmv F
Factor: 3754967394016253015449 / TF: 71-72*
2018-09-07ZenghuiNF
no factor from 2^70 to 2^71
2016-10-20La GüiraNF
no factor from 2^69 to 2^70
2016-10-20La GüiraNF
no factor from 2^68 to 2^69
2016-06-06HBendtzNF
no factor from 2^67 to 2^68
2015-06-28RichardNF
no factor from 2^66 to 2^67
2013-04-06Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-02-28BloodIceNF
no factor from 2^64 to 2^65
2010-07-12MarzbugNF
no factor from 2^63 to 2^64