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
138621761Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1170000
B2 = 1170060870
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-08-24curtiscAFB80E52FE90191D12215834713
History
DateUserTypeResult
2025-08-25JOHNRDCERT
PRP Certification
CERT proof power = 8
Proof certified good
2025-08-24curtiscC-PRP
AFB80E52FE90191D
PRP proof power = 8
PRP: Verified
Proof certified good
2024-09-20Luke DurantNF-PM1
B1=1170000, B2=1170060870
2024-08-02Luke DurantNF
no factor from 2^76 to 2^77
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-01-15SRBaseNF
no factor from 2^74 to 2^75
2021-08-04SRBaseNF
no factor from 2^73 to 2^74
2020-10-27SRBaseNF
no factor from 2^72 to 2^73
2016-03-23Mihai PredaNF
no factor from 2^71 to 2^72
2016-03-18Mihai PredaNF
no factor from 2^70 to 2^71
2016-03-12SourceBinary.comNF
no factor from 2^69 to 2^70
2016-03-12Josh FamestadNF
no factor from 2^68 to 2^69
2016-03-02dbaughNF
no factor from 2^67 to 2^68
2015-02-15RichardNF
no factor from 2^66 to 2^67
2012-11-25RichardNF
no factor from 2^65 to 2^66
2010-12-06RichardNF
no factor from 2^64 to 2^65
2010-06-12Charles A. MorrisNF
no factor from 2^63 to 2^64