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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
48565813Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 535000
B2 = 12973750
LL
StatusDateUserResidueShift
Verified2012-11-17curtiscAC9053D84E5D97AD18331625
Verified2019-05-28Sergey NosovAC9053D84E5D97AD45066897
History
DateUserTypeResult
2019-05-28Sergey NosovC-LL
AC9053D84E5D97AD
2018-02-23-Anonymous-NF
no factor from 2^72 to 2^73
2012-11-17curtiscC-LL
AC9053D84E5D97AD
2012-02-25GregNF
no factor from 2^71 to 2^72
2012-02-25GregNF
no factor from 2^70 to 2^71
2012-02-22monstNF-PM1
B1=535000, B2=12973750, E=12
2012-01-27Jerry HallettNF
no factor from 2^69 to 2^70