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
121177123Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1158000
B2 = 4406029320
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-05-14Luke Durant0CECBE025CDB5780013
History
DateUserTypeResult
2024-05-14Emanuel CeciuCERT
PRP Certification
CERT proof power = 8
Proof certified good
2024-05-14Luke DurantC-PRP
0CECBE025CDB5780
PRP proof power = 8
PRP: Verified
Proof certified good
2024-01-23Luke DurantNF-PM1
B1=1158000, B2=4406029320
2022-06-22TheJudgerNF
no factor from 2^76 to 2^77
2021-07-25TheJudgerNF
no factor from 2^75 to 2^76
2021-07-25TheJudgerNF
no factor from 2^74 to 2^75
2021-07-05SRBaseNF
no factor from 2^73 to 2^74
2020-10-28SRBaseNF
no factor from 2^72 to 2^73
2015-07-30Per JessenNF
no factor from 2^71 to 2^72
2015-07-19bunddogNF
no factor from 2^70 to 2^71
2013-11-05GrunwalderGIMPNF
no factor from 2^69 to 2^70
2013-11-05GrunwalderGIMPNF
no factor from 2^68 to 2^69
2013-11-05GrunwalderGIMPNF
no factor from 2^66 to 2^68
2012-08-17RichardNF
no factor from 2^65 to 2^66
2010-10-20Torchwood InstituteNF
no factor from 2^64 to 2^65
2010-05-20EPFNF
no factor from 2^63 to 2^64