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
41929163Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 690000
B2 = 690000
LL
StatusDateUserResidueShift
Verified2008-06-22UCLA PIC/Math LabCCCAC40F1E78C12F5374230
Verified2017-09-03Sergey NosovCCCAC40F1E78C12F475982
History
DateUserTypeResult
2020-01-18-Anonymous-NF
no factor from 2^73 to 2^74
2019-07-18Sid & AndyNF
no factor from 2^72 to 2^73
2017-09-03Sergey NosovC-LL
CCCAC40F1E78C12F
2015-09-12AirSquirrelsNF
no factor from 2^71 to 2^72
2015-02-23Mark RoseNF
no factor from 2^70 to 2^71
2015-01-09NumberwangNF
no factor from 2^69 to 2^70
2014-02-27LaurVNF
no factor from 2^68 to 2^69