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
45570121Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 272
P-1
B1 = 550000
B2 = 13887500
LL
StatusDateUserResidueShift
Verified2010-05-24lindedA091B7764772A73A7010310
Verified2017-08-10pzmastaA091B7764772A73A19198003
History
DateUserTypeResult
2020-06-26Sid & AndyNF
no factor from 2^74 to 2^75
2019-12-22-Anonymous-NF
no factor from 2^73 to 2^74
2018-07-31-Anonymous-NF
no factor from 2^72 to 2^73
2017-08-10pzmastaC-LL
A091B7764772A73A
2015-10-23-Anonymous-NF
no factor from 2^71 to 2^72
2015-09-20GregNF
no factor from 2^70 to 2^71
2015-08-03LaurVNF
no factor from 2^69 to 2^70
2014-08-14chalsallNF
no factor from 2^68 to 2^69
2010-05-24lindedC-LL
A091B7764772A73A
2010-04-11lindedNF-PM1
B1=550000, B2=13887500