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
75231053Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 459000
B2 = 255932820
LL
StatusDateUserResidueShift
Verified2016-02-15-Anonymous-3CAF9D9C3968BE9C7608637
Verified2024-03-19codereptile3CAF9D9C3968BE9C27491030
History
DateUserTypeResult
2024-03-19codereptileC-LL
3CAF9D9C3968BE9C
2022-10-16Joe S.NF-PM1
B1=459000, B2=255932820
2022-10-16Ahmed AzhadNF-PM1
B1=388000, B2=84918900
2016-02-15-Anonymous-C-LL
3CAF9D9C3968BE9C
2016-01-17-Anonymous-NF-PM1
B1=750000
2016-01-10TheJudgerNF
no factor from 2^74 to 2^75
2016-01-10TheJudgerNF
no factor from 2^73 to 2^74
2015-12-26BdotNF
no factor from 2^72 to 2^73
2014-01-09PascalBieriNF
no factor from 2^71 to 2^72
2013-05-14Nathan EdingtonNF
no factor from 2^70 to 2^71
2012-12-11MOmaxNF
no factor from 2^69 to 2^70
2010-09-14trifNF
no factor from 2^68 to 2^69
2010-08-30trifNF
no factor from 2^67 to 2^68
2010-08-02GrunwalderGIMPNF
no factor from 2^66 to 2^67
2010-08-01Bold_SeekerNF
no factor from 2^65 to 2^66
2010-07-31GrunwalderGIMPNF
no factor from 2^64 to 2^65