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
50337803Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 580000
B2 = 13485000
LL
StatusDateUserResidueShift
Verified2011-06-01linded5557E551847323785199303
Verified2019-12-13Sergey Nosov5557E5518473237810051468
History
DateUserTypeResult
2019-12-13Sergey NosovC-LL
5557E55184732378
2018-12-01Mark RoseNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2015-12-28Judge HaleNF
no factor from 2^72 to 2^73
2015-12-21AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-21AirSquirrelsNF
no factor from 2^70 to 2^71
2015-01-18monstNF
no factor from 2^69 to 2^70
2011-06-01lindedC-LL
5557E55184732378
2011-02-02lindedNF-PM1
B1=580000, B2=13485000