Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
221356483Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18949036388181031618872270.72019-07-24 17:09:38
History
DateUserTypeResult
2025-04-20James HeinrichF
Factor: 1894903638818103161887 / TF: 70-71
2019-07-24Smok_bmv F
Factor: 1894903638818103161887 / TF: 70-71*
2018-07-09Primes.orgNF
no factor from 2^69 to 2^70
2018-02-19CorbyguyNF
no factor from 2^68 to 2^69
2016-09-04XZTNF
no factor from 2^67 to 2^68
2015-10-28ANONYMOUSNF
no factor from 2^66 to 2^67
2013-08-24sasaki3NF
no factor from 2^65 to 2^66
2011-06-06carlos56NF
no factor from 2^64 to 2^65