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
215616509Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
13629983493285941334012270.22018-06-04 04:25:28
History
DateUserTypeResult
2025-04-21James HeinrichF
Factor: 1362998349328594133401 / TF: 70-71
2018-06-04Smok_bmv F
Factor: 1362998349328594133401 / TF: 70-71*
2018-06-04Smok_bmv NF
no factor from 2^69 to 2^70
2017-12-27Doug RheaNF
no factor from 2^68 to 2^69
2016-09-08Gimi.HNF
no factor from 2^67 to 2^68
2015-10-19ANONYMOUSNF
no factor from 2^66 to 2^67
2012-07-07america64NF
no factor from 2^65 to 2^66
2011-05-27sasaki3NF
no factor from 2^64 to 2^65