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
120256153Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 915000
B2 = 441026670
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-04-25ky0uraku88B6AB167DBCB43811686802813
History
DateUserTypeResult
2024-04-25jftobolskiCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-04-25ky0urakuC-PRP
88B6AB167DBCB438
PRP proof power = 9
PRP: Verified
Proof certified good
2023-11-17Simon JosefssonNF-PM1
B1=915000, B2=441026670
2022-06-13TheJudgerNF
no factor from 2^76 to 2^77
2021-07-11TheJudgerNF
no factor from 2^75 to 2^76
2021-07-11TheJudgerNF
no factor from 2^74 to 2^75
2021-06-04FlaukrotistNF
no factor from 2^73 to 2^74
2015-07-05taffaNF
no factor from 2^72 to 2^73
2015-07-05taffaNF
no factor from 2^71 to 2^72
2015-07-05taffaNF
no factor from 2^70 to 2^71
2015-05-03SMoffatNF
no factor from 2^69 to 2^70
2015-04-19SMoffatNF
no factor from 2^68 to 2^69
2015-01-11caddrNF
no factor from 2^67 to 2^68
2013-04-18E.LechnerNF
no factor from 2^66 to 2^67
2012-08-09RichardNF
no factor from 2^65 to 2^66
2010-10-18Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-05-16Mr-PlonkNF
no factor from 2^63 to 2^64