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
56539667TF
No factors below 274
TF target 273
P-1
B1 = 560000
B2 = 11200000
LL
StatusDateUserResidueShift
Verified2013-09-04gucs6C61408BA4974A4235962960
Verified2020-12-28Andrey Mitrofanov6C61408BA4974A4217173627
History
DateUserTypeResult
2020-12-28Andrey MitrofanovC-LL
6C61408BA4974A42
2018-10-23ChuckNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^63 to 2^64
2016-01-01-Anonymous-NF
no factor from 2^72 to 2^73
2013-09-04gucsC-LL
6C61408BA4974A42
2012-07-12GrunwalderGIMPNF-PM1
B1=560000, B2=11200000
2012-07-03Jerry HallettNF
no factor from 2^71 to 2^72
2011-09-22-Anonymous-NF
no factor from 2^70 to 2^71
2011-06-15XyzzyNF
no factor from 2^69 to 2^70
2011-04-26lexatrefNF
no factor from 2^68 to 2^69
2009-05-20Sturle SundeNF
no factor from 2^67 to 2^68
2008-03-17James HeinrichNF
no factor from 2^66 to 2^67
2008-03-17scotty24NF
no factor from 2^65 to 2^66
2008-03-16David CampeauNF
no factor from 2^64 to 2^65