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
155427841No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 916000
B2 = 531483810
History
DateUserTypeResult
2025-07-31mewturnNF-PM1
B1=916000, B2=531483810
2025-06-03brian-nebiusNF
no factor from 2^77 to 2^78
2024-11-11flip2433NF
no factor from 2^76 to 2^77
2024-08-19SRBaseNF
no factor from 2^75 to 2^76
2023-02-18SRBaseNF
no factor from 2^74 to 2^75
2021-11-15SRBaseNF
no factor from 2^73 to 2^74
2018-02-24Craig JohnsonNF
no factor from 2^72 to 2^73
2018-02-22Craig JohnsonNF
no factor from 2^71 to 2^72
2017-08-16Johan ViljoenNF
no factor from 2^70 to 2^71
2017-02-09TheGazManNF
no factor from 2^69 to 2^70
2016-07-28Mihai PredaNF
no factor from 2^68 to 2^69
2016-05-06DerekNF
no factor from 2^67 to 2^68
2015-04-11vwflat4NF
no factor from 2^66 to 2^67
2013-04-04firereddNF
no factor from 2^65 to 2^66
2011-01-23runeskNF
no factor from 2^64 to 2^65