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
50142409Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 810000
B2 = 810000
LL
StatusDateUserResidueShift
Verified2011-02-09-Anonymous-D5771FC1A911FAD52763836
Verified2019-12-11frolyarD5771FC1A911FAD532847337
History
DateUserTypeResult
2019-12-11frolyarC-LL
D5771FC1A911FAD5
2018-12-14Mark RoseNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2015-12-28Judge HaleNF
no factor from 2^72 to 2^73
2015-12-23AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-23AirSquirrelsNF
no factor from 2^70 to 2^71
2014-12-29monstNF
no factor from 2^69 to 2^70
2011-02-09-Anonymous-C-LL
D5771FC1A911FAD5
2010-07-01-Anonymous-NF-PM1
B1=810000