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
128516027Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 879000
B2 = 205877100
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-08-12Luke Durant0A71D1CCF0154D64013
History
DateUserTypeResult
2024-08-12Luke DurantCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-08-12Luke DurantC-PRP
0A71D1CCF0154D64
PRP proof power = 9
PRP: Verified
Proof certified good
2024-05-03whateverxequalsNF-PM1
B1=879000, B2=205877100
2023-01-27TravisJankNF
no factor from 2^76 to 2^77
2023-01-25srow7NF
no factor from 2^75 to 2^76
2022-12-24SRBaseNF
no factor from 2^74 to 2^75
2021-07-15SRBaseNF
no factor from 2^73 to 2^74
2020-11-02SRBaseNF
no factor from 2^72 to 2^73
2015-11-29SourceBinary.comNF
no factor from 2^71 to 2^72
2015-11-22Meral HarbesNF
no factor from 2^70 to 2^71
2015-02-06La GüiraNF
no factor from 2^69 to 2^70
2015-02-06La GüiraNF
no factor from 2^68 to 2^69
2015-02-06La GüiraNF
no factor from 2^67 to 2^68
2015-01-14el groccoNF
no factor from 2^66 to 2^67
2012-10-01Mark ScudderNF
no factor from 2^65 to 2^66
2010-11-08Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-05-29sasaki3NF
no factor from 2^63 to 2^64