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
138899653Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 672000
B2 = 31711470
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-09-30Mihai Preda32861C701BF25F0D013
History
DateUserTypeResult
2025-09-30Oliver KruseCERT
PRP Certification
CERT proof power = 10
Proof certified good
2025-09-30Mihai PredaC-PRP
32861C701BF25F0D
PRP proof power = 10
PRP: Verified
Proof certified good
2024-09-22Ryan PropperNF-PM1
B1=672000, B2=31711470
2024-08-07Luke DurantNF
no factor from 2^76 to 2^77
2024-07-15SRBaseNF
no factor from 2^75 to 2^76
2023-01-15SRBaseNF
no factor from 2^74 to 2^75
2021-08-03SRBaseNF
no factor from 2^73 to 2^74
2020-10-25SRBaseNF
no factor from 2^72 to 2^73
2016-04-01DeadPixelNF
no factor from 2^71 to 2^72
2016-03-30AlsXZNF
no factor from 2^70 to 2^71
2016-03-19La GüiraNF
no factor from 2^69 to 2^70
2016-03-19La GüiraNF
no factor from 2^68 to 2^69
2016-03-02dbaughNF
no factor from 2^67 to 2^68
2015-01-30el groccoNF
no factor from 2^66 to 2^67
2012-11-20sasaki3NF
no factor from 2^65 to 2^66
2010-12-04Thomas StorkNF
no factor from 2^64 to 2^65
2010-06-17RichardNF
no factor from 2^63 to 2^64