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
46002283Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 560000
B2 = 16660000
LL
StatusDateUserResidueShift
Verified2008-05-23davy863CF6DAF8E384C133457770
Verified2015-12-25MadPoo863CF6DAF8E384C112679976
History
DateUserTypeResult
2024-05-25ChuckNF
no factor from 2^68 to 2^69
2018-03-04monstNF
no factor from 2^72 to 2^73
2015-12-25MadPooC-LL
863CF6DAF8E384C1
2015-12-04AirSquirrelsNF
no factor from 2^71 to 2^72
2015-10-28XZTNF
no factor from 2^70 to 2^71
2015-08-21David CampeauNF
no factor from 2^69 to 2^70
2013-02-10Carsten KossendeyNF
no factor from 2^68 to 2^69
2008-05-23davyC-LL
863CF6DAF8E384C1
2008-02-10James HeinrichNF-PM1
B1=560000, B2=16660000, E=4
2007-12-01Team_BunduNF
no factor from 2^65 to 2^66
2007-12-01Team_BunduNF
no factor from 2^64 to 2^65
2007-11-30Team_BunduNF
no factor from 2^63 to 2^64