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
48744791Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 800000
B2 = 16000000
LL
StatusDateUserResidueShift
Verified2010-09-02Jack The Ripper664819694DC28CEE37492642
Verified2019-06-17Sergey Nosov664819694DC28CEE8081407
History
DateUserTypeResult
2019-06-17Sergey NosovC-LL
664819694DC28CEE
2018-11-28Sid & AndyNF-PM1
B1=800000, B2=16000000, E=6
2018-02-12Mark RoseNF
no factor from 2^72 to 2^73
2015-12-13AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-13AirSquirrelsNF
no factor from 2^70 to 2^71
2015-08-31LaurVNF
no factor from 2^69 to 2^70
2010-09-02Jack The RipperC-LL
664819694DC28CEE
2010-08-03Jack The RipperNF-PM1
B1=765000