Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
278079983Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
37522305803456253687432271.72019-11-11 03:29:15
History
DateUserTypeResult
2025-04-28James HeinrichF
Factor: 3752230580345625368743 / TF: 71-72
2019-11-11Smok_bmv F
Factor: 3752230580345625368743 / TF: 71-72*
2019-11-11Smok_bmv NF
no factor from 2^70 to 2^71
2019-07-07Chabot PrimeNF
no factor from 2^69 to 2^70
2018-07-09Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-08tscNF
no factor from 2^67 to 2^68
2016-01-15sannerud.comNF
no factor from 2^66 to 2^67
2013-12-08tscNF
no factor from 2^65 to 2^66
2011-09-09sasaki3NF
no factor from 2^64 to 2^65
2010-04-04sasaki3NF
no factor from 2^63 to 2^64
2010-04-04sasaki3NF
no factor from 2^62 to 2^63