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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
103828709Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2215872617899656124459512477.62021-05-17 12:16:57
P-1 factors
DateFactorB1B2
2021-05-1722158726178996561244595176500022726000
History
DateUserTypeResult
2021-05-17Simon JosefssonF-PM1
Factor: 221587261789965612445951 / (P-1, B1=765000, B2=22726000, E=12)
2020-08-14Bill StaffenNF
no factor from 2^75 to 2^76
2020-08-14mrk74NF
no factor from 2^74 to 2^75
2019-08-28Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2019-08-28Niels_Mache_NextcloudNF
no factor from 2^72 to 2^73
2017-12-10el groccoNF
no factor from 2^71 to 2^72
2015-01-03La GüiraNF
no factor from 2^70 to 2^71
2014-10-28-Anonymous-NF
no factor from 2^69 to 2^70
2014-10-20-Anonymous-NF
no factor from 2^68 to 2^69
2014-10-14g0bNF
no factor from 2^67 to 2^68
2014-07-07arnaudNF
no factor from 2^66 to 2^67
2012-05-02sasaki3NF
no factor from 2^65 to 2^66
2010-08-24Torchwood InstituteNF
no factor from 2^64 to 2^65
2010-04-24monstNF
no factor from 2^63 to 2^64