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
41505631Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 675000
B2 = 675000
LL
StatusDateUserResidueShift
Verified2009-04-07Jason Hammon1271899ACFB3C00D38167122
Bad2015-10-16demfloroB3CA0BE0F98A26E01844844
Verified2016-10-16MadPoo1271899ACFB3C00D7003046
History
DateUserTypeResult
2020-01-10-Anonymous-NF
no factor from 2^73 to 2^74
2019-06-08Sid & AndyNF
no factor from 2^72 to 2^73
2016-10-16MadPooC-LL
1271899ACFB3C00D
2015-10-16demfloroC-LL
B3CA0BE0F98A26E0
2015-09-01AirSquirrelsNF
no factor from 2^71 to 2^72
2015-01-29Mark RoseNF
no factor from 2^70 to 2^71
2015-01-25Andrew BNF
no factor from 2^69 to 2^70
2014-02-14LaurVNF
no factor from 2^68 to 2^69
2009-04-07Jason HammonC-LL
1271899ACFB3C00D
2009-03-11Jason HammonNF-PM1
B1=675000