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
142299923Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1219000
B2 = 1439110860
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-09-25Steven_Brehmer4867562483AFF4282934351213
History
DateUserTypeResult
2025-09-25Jason LynchCERT
PRP Certification
CERT proof power = 8
Proof certified good
2025-09-25Steven_BrehmerC-PRP
4867562483AFF428
PRP proof power = 8
PRP: Verified
Proof certified good
2024-10-02Luke DurantNF-PM1
B1=1219000, B2=1439110860
2024-09-25Ryan PropperNF
no factor from 2^76 to 2^77
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2023-01-23SRBaseNF
no factor from 2^74 to 2^75
2021-11-07SRBaseNF
no factor from 2^73 to 2^74
2020-10-25SRBaseNF
no factor from 2^72 to 2^73
2016-07-18guruNF
no factor from 2^71 to 2^72
2016-07-17DerekNF
no factor from 2^70 to 2^71
2016-07-17Choi4KANGNF
no factor from 2^69 to 2^70
2016-06-05Choi4KANGNF
no factor from 2^68 to 2^69
2016-03-25dbaughNF
no factor from 2^67 to 2^68
2015-02-23Jan KuipersNF
no factor from 2^66 to 2^67
2012-12-09sasaki3NF
no factor from 2^65 to 2^66
2010-12-22jomateixNF
no factor from 2^64 to 2^65
2010-06-16Charles A. MorrisNF
no factor from 2^63 to 2^64