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
138688777Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1177000
B2 = 1295197530
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-09-04curtiscD994FF3DA096E65410084843913
History
DateUserTypeResult
2025-09-04George WoltmanCERT
PRP Certification
CERT proof power = 8
Proof certified good
2025-09-04Klaus VicaroCERT
PRP Certification
CERT proof power = 8
Certification bad
2025-09-04curtiscC-PRP
D994FF3DA096E654
PRP proof power = 8
PRP: Verified
Certification bad
Proof certified good
2024-09-21Luke DurantNF-PM1
B1=1177000, B2=1295197530
2024-08-03Luke DurantNF
no factor from 2^76 to 2^77
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2023-01-15SRBaseNF
no factor from 2^74 to 2^75
2021-08-02SRBaseNF
no factor from 2^73 to 2^74
2020-11-16SRBaseNF
no factor from 2^72 to 2^73
2017-03-24Per JessenNF
no factor from 2^71 to 2^72
2017-02-02proxy2222NF
no factor from 2^70 to 2^71
2017-01-29proxy2222NF
no factor from 2^69 to 2^70
2017-01-29proxy2222NF
no factor from 2^68 to 2^69
2016-03-02dbaughNF
no factor from 2^67 to 2^68
2015-01-31el groccoNF
no factor from 2^66 to 2^67
2012-11-19tscNF
no factor from 2^65 to 2^66
2010-12-04Thomas StorkNF
no factor from 2^64 to 2^65
2010-06-12Charles A. MorrisNF
no factor from 2^63 to 2^64