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
75273469Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 274
P-1
B1 = 620000
B2 = 8990000
LL
StatusDateUserResidueShift
Verified2017-04-03Dmitriy Degtiarev548C6DC2201B6DED50416124
Verified2024-09-30forrest-lumpkin548C6DC2201B6DED35188422
History
DateUserTypeResult
2024-09-30forrest-lumpkinC-LL
548C6DC2201B6DED
2020-05-23-Anonymous-NF
no factor from 2^75 to 2^76
2017-04-03Dmitriy DegtiarevC-LL
548C6DC2201B6DED
2016-02-01guruNF-PM1
B1=620000, B2=8990000
2016-01-28PDWNF
no factor from 2^74 to 2^75
2016-01-28PDWNF
no factor from 2^73 to 2^74
2016-01-07BdotNF
no factor from 2^72 to 2^73
2013-12-26SMoffatNF
no factor from 2^71 to 2^72
2013-05-15SMoffatNF
no factor from 2^70 to 2^71
2010-08-11Tom DuellNF
no factor to 2^70
2010-08-02PatrickNF
no factor from 2^64 to 2^65