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
128220941Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1123000
B2 = 1466203200
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-08-12Luke Durant1415909D6D081410013
History
DateUserTypeResult
2024-08-12twmossCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-08-12Luke DurantC-PRP
1415909D6D081410
PRP proof power = 9
PRP: Verified
Proof certified good
2024-07-24Luke DurantNF-PM1
B1=1123000, B2=1466203200
2024-06-25GregNF
no factor from 2^69 to 2^70
2024-06-24Jarod McClintockNF
no factor from 2^68 to 2^69
2023-01-12TravisJankNF
no factor from 2^76 to 2^77
2023-01-12TravisJankNF
no factor from 2^75 to 2^76
2022-12-21SRBaseNF
no factor from 2^74 to 2^75
2021-07-15SRBaseNF
no factor from 2^73 to 2^74
2020-10-20SRBaseNF
no factor from 2^72 to 2^73
2015-11-27SourceBinary.comNF
no factor from 2^71 to 2^72
2015-11-22Meral HarbesNF
no factor from 2^70 to 2^71
2015-10-13Judge HaleNF
no factor from 2^69 to 2^70
2015-10-10Judge HaleNF
no factor from 2^68 to 2^69
2015-09-29NumberwangNF
no factor from 2^67 to 2^68
2015-01-10el groccoNF
no factor from 2^66 to 2^67
2012-09-28soldcakeNF
no factor from 2^65 to 2^66
2010-11-08RichardNF
no factor from 2^64 to 2^65
2010-05-29OS1NF
no factor from 2^63 to 2^64