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
215143787Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
13765036490733259599592270.22018-05-21 03:16:11
History
DateUserTypeResult
2025-04-21James HeinrichF
Factor: 1376503649073325959959 / TF: 70-71
2018-05-21Smok_bmv F
Factor: 1376503649073325959959 / TF: 70-71*
2018-05-21Smok_bmv NF
no factor from 2^69 to 2^70
2017-12-22BJBNF
no factor from 2^68 to 2^69
2016-09-07DerekNF
no factor from 2^67 to 2^68
2015-10-19ANONYMOUSNF
no factor from 2^66 to 2^67
2012-07-08america64NF
no factor from 2^65 to 2^66
2011-05-27RichardNF
no factor from 2^64 to 2^65