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
455188483Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12119603129190411270492270.02019-12-21 04:00:13
History
DateUserTypeResult
2025-03-27James HeinrichF
Factor: 1211960312919041127049 / TF: 70-71
2019-12-21Smok_bmv F
Factor: 1211960312919041127049 / TF: 70-71*
2018-12-28Niels_Mache_NextcloudNF
no factor from 2^69 to 2^70
2018-02-19sasakiNF
no factor from 2^68 to 2^69
2016-04-22sasakiNF
no factor from 2^67 to 2^68
2016-02-17sasakiNF
no factor from 2^66 to 2^67
2014-09-13MarylandMathManNF
no factor from 2^65 to 2^66
2011-11-30sasaki3NF
no factor from 2^64 to 2^65
2010-03-27Architects CubedNF
no factor from 2^63 to 2^64