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
151511783No known factors, not tested for primality
TF
No factors below 278
TF target 277
P-1
B1 = 790000
B2 = 37663080
History
DateUserTypeResult
2025-09-08HomeliteXP1020NF
no factor from 2^77 to 2^78
2025-02-14La GüiraNF
no factor from 2^76 to 2^77
2024-09-15Ryan PropperNF-PM1
B1=790000, B2=37663080
2024-08-03SRBaseNF
no factor from 2^75 to 2^76
2023-02-06SRBaseNF
no factor from 2^74 to 2^75
2021-11-13SRBaseNF
no factor from 2^73 to 2^74
2017-03-23Ryan PropperNF
no factor from 2^72 to 2^73
2017-03-22John BurroughsNF
no factor from 2^71 to 2^72
2017-03-21John BurroughsNF
no factor from 2^70 to 2^71
2017-03-21John BurroughsNF
no factor from 2^69 to 2^70
2017-02-20debrouxlNF
no factor from 2^68 to 2^69
2016-05-03RichardNF
no factor from 2^67 to 2^68
2015-03-24nEtcoOKNF
no factor from 2^66 to 2^67
2013-01-18sasaki3NF
no factor from 2^65 to 2^66
2011-01-14sannerud.comNF
no factor from 2^64 to 2^65
2010-06-23Charles A. MorrisNF
no factor from 2^63 to 2^64