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
41999371TF
No factors below 274
TF target 272
P-1
B1 = 505000
B2 = 14392500
LL
StatusDateUserResidueShift
Verified2009-11-28Robert Walker185FE38BFFFA7ECE9739678
Verified2017-09-12Sergey Nosov185FE38BFFFA7ECE38679640
History
DateUserTypeResult
2020-01-19-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-04-Anonymous-NF
no factor from 2^72 to 2^73
2017-09-12Sergey NosovC-LL
185FE38BFFFA7ECE
2015-08-31AirSquirrelsNF
no factor from 2^71 to 2^72
2015-02-22Mark RoseNF
no factor from 2^70 to 2^71
2015-01-29Mark RoseNF
no factor from 2^69 to 2^70
2013-12-06Carsten KossendeyNF
no factor from 2^68 to 2^69
2009-11-28Robert WalkerC-LL
185FE38BFFFA7ECE
2009-10-04Robert WalkerNF-PM1
B1=505000, B2=14392500, E=12