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
48248047Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 565000
B2 = 15113750
LL
StatusDateUserResidueShift
Verified2010-03-01jrichens5D9E417A14B9F90147293019
Verified2019-04-26Sergey Nosov5D9E417A14B9F90142660955
History
DateUserTypeResult
2019-06-26Sid & AndyNF
no factor from 2^73 to 2^74
2019-04-26Sergey NosovC-LL
5D9E417A14B9F901
2018-02-02Kevin JagetNF
no factor from 2^72 to 2^73
2015-11-20-Anonymous-NF
no factor from 2^71 to 2^72
2015-09-13Sid & AndyNF
no factor from 2^70 to 2^71
2015-08-01Gordon SpenceNF
no factor from 2^69 to 2^70
2010-03-01jrichensC-LL
5D9E417A14B9F901
2010-01-04jrichensNF-PM1
B1=565000, B2=15113750