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
50161933TF
No factors below 274
TF target 273
P-1
B1 = 485000
B2 = 9821250
LL
StatusDateUserResidueShift
Verified2013-01-23Stephan Grupp42F44685059B510D6743555
Verified2019-11-12Sergey Nosov42F44685059B510D35606061
History
DateUserTypeResult
2019-11-12Sergey NosovC-LL
42F44685059B510D
2018-12-13Mark RoseNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2015-12-21AirSquirrelsNF
no factor from 2^72 to 2^73
2013-01-23Stephan GruppC-LL
42F44685059B510D
2011-12-17XyzzyNF-PM1
B1=485000, B2=9821250, E=6
2011-11-28XyzzyNF
no factor from 2^71 to 2^72
2011-11-24Luigi MorelliNF
no factor from 2^70 to 2^71
2011-11-22Kyle AskineNF
no factor from 2^69 to 2^70