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
48223621Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 565000
B2 = 15820000
LL
StatusDateUserResidueShift
Verified2010-04-07James RedmonEF5A3C78243980F328982378
Verified2019-04-24Sergey NosovEF5A3C78243980F331963329
History
DateUserTypeResult
2019-04-24Sergey NosovC-LL
EF5A3C78243980F3
2018-03-04Architects CubedNF
no factor from 2^72 to 2^73
2015-12-02AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-02AirSquirrelsNF
no factor from 2^70 to 2^71
2015-08-30Mark RoseNF
no factor from 2^69 to 2^70
2010-04-07James RedmonC-LL
EF5A3C78243980F3
2010-03-08James RedmonNF-PM1
B1=565000, B2=15820000, E=6