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
155506931No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 2000000
B2 = 793229010
History
DateUserTypeResult
2025-08-08GregNF-PM1
B1=2000000, B2=793229010
2025-06-01John_McClaneNF
no factor from 2^77 to 2^78
2024-10-12Generic Username 3485NF
no factor from 2^76 to 2^77
2024-08-13SRBaseNF
no factor from 2^75 to 2^76
2023-02-22SRBaseNF
no factor from 2^74 to 2^75
2021-11-20SRBaseNF
no factor from 2^73 to 2^74
2017-09-17BronzemanNF
no factor from 2^72 to 2^73
2017-09-14BronzemanNF
no factor from 2^71 to 2^72
2017-09-03Alexander DresslerNF
no factor from 2^70 to 2^71
2017-08-19La GüiraNF
no factor from 2^69 to 2^70
2017-03-05VteamNF
no factor from 2^68 to 2^69
2016-05-03ANONYMOUSNF
no factor from 2^67 to 2^68
2015-04-13GrunwalderGIMPNF
no factor from 2^66 to 2^67
2013-02-03RichardNF
no factor from 2^65 to 2^66
2011-01-31andrazsNF
no factor from 2^64 to 2^65