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
142801327Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1209000
B2 = 1345255560
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-10-09curtisc604A183FC1F0377C13838051313
History
DateUserTypeResult
2025-10-09whateverxequalsCERT
PRP Certification
CERT proof power = 8
Proof certified good
2025-10-09curtiscC-PRP
604A183FC1F0377C
PRP proof power = 8
PRP: Verified
Proof certified good
2024-10-03Luke DurantNF-PM1
B1=1209000, B2=1345255560
2024-10-01Luke DurantNF
no factor from 2^76 to 2^77
2024-02-231997rj7NF
no factor from 2^75 to 2^76
2023-01-23SRBaseNF
no factor from 2^74 to 2^75
2021-11-08SRBaseNF
no factor from 2^73 to 2^74
2020-11-16SRBaseNF
no factor from 2^72 to 2^73
2016-06-04AlsXZNF
no factor from 2^71 to 2^72
2016-05-24Mihai PredaNF
no factor from 2^70 to 2^71
2016-04-20Smok_bmv NF
no factor from 2^69 to 2^70
2016-04-15Mihai PredaNF
no factor from 2^68 to 2^69
2016-03-31dbaughNF
no factor from 2^67 to 2^68
2015-02-24aurashiftNF
no factor from 2^66 to 2^67
2012-12-11tscNF
no factor from 2^65 to 2^66
2010-12-21RichardNF
no factor from 2^64 to 2^65
2010-06-16Charles A. MorrisNF
no factor from 2^63 to 2^64