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
138731557Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1262000
B2 = 1701696150
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-09-02mewturnCCF398B2F601E459013
History
DateUserTypeResult
2025-09-08Massimo Cappelli (ik5pwa)CERT
PRP Certification
CERT proof power = 7
Proof certified good
2025-09-02mewturnC-PRP
CCF398B2F601E459
PRP proof power = 7
PRP: Verified
Proof certified good
2024-08-02RichardNF
no factor from 2^76 to 2^77
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2024-07-04Luke DurantNF-PM1
B1=1262000, B2=1701696150
2023-01-15SRBaseNF
no factor from 2^74 to 2^75
2021-08-02SRBaseNF
no factor from 2^73 to 2^74
2020-10-23SRBaseNF
no factor from 2^72 to 2^73
2017-02-10Michael.ReillyNF
no factor from 2^71 to 2^72
2017-02-07Yuri PonomarevNF
no factor from 2^70 to 2^71
2017-02-06proxy2222NF
no factor from 2^69 to 2^70
2017-02-06proxy2222NF
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
2012-11-25RichardNF
no factor from 2^65 to 2^66
2010-12-04PiepenNF
no factor from 2^64 to 2^65
2010-06-12oodairaNF
no factor from 2^63 to 2^64