Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
121171207Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 926000
B2 = 405352080
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-05-13Luke Durant0300257E06E8026D013
History
DateUserTypeResult
2024-05-13Mark_JohnsonCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-05-13Luke DurantC-PRP
0300257E06E8026D
PRP proof power = 9
PRP: Verified
Proof certified good
2024-01-18megavinkNF-PM1
B1=926000, B2=405352080
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
2021-07-06SRBaseNF
no factor from 2^73 to 2^74
2020-10-19SRBaseNF
no factor from 2^72 to 2^73
2015-07-21SummyNF
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
2012-08-10Mr-PlonkNF
no factor from 2^65 to 2^66
2010-10-23AntonNF
no factor from 2^64 to 2^65
2010-05-18subgeniusNF
no factor from 2^63 to 2^64