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
41271037Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 465000
B2 = 10346250
LL
StatusDateUserResidueShift
Verified2008-09-24Chris Young9E5DFB496201620B39537626
Verified2015-09-21demfloro9E5DFB496201620B29864153
History
DateUserTypeResult
2022-05-11Sid & AndyNF
no factor from 2^72 to 2^73
2015-09-21demfloroC-LL
9E5DFB496201620B
2015-08-17AirSquirrelsNF
no factor from 2^71 to 2^72
2015-01-08chalsallNF
no factor from 2^70 to 2^71
2014-12-31chalsallNF
no factor from 2^69 to 2^70