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
25376207Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 1000000
B2 = 509991300
LL
StatusDateUserResidueShift
Verified2004-12-23Christopher StephensC6E9ED5AFA4E57B415184828
Verified2012-07-23DubslowC6E9ED5AFA4E57B414815678
History
DateUserTypeResult
2024-05-13James HeinrichNF
no factor from 2^68 to 2^69
2022-02-11Anton RepkoNF-PM1
B1=1000000, B2=509991300
2021-09-30TheJudgerNF
no factor from 2^73 to 2^74
2021-09-30TheJudgerNF
no factor from 2^74 to 2^75
2021-08-28TheJudgerNF
no factor from 2^72 to 2^73
2021-08-28TheJudgerNF
no factor from 2^71 to 2^72
2021-06-14mikrNF
no factor from 2^70 to 2^71
2017-03-21ramgeisNF
no factor from 2^69 to 2^70
2012-07-23DubslowC-LL
C6E9ED5AFA4E57B4
2012-01-02Carsten KossendeyNF
no factor from 2^68 to 2^69
2011-12-12David CampeauNF
no factor from 2^67 to 2^68