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:





MnDetails
40340723
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 272
P-1
B1 = 490000
B2 = 13965000
LL
StatusDateUserResidueShiftSoftware
Bad2008-10-15Daniel Livingston84198E0A08427E0D32706286Windows,Prime95,v24 final,(aka Wc1)
Verified2016-08-05endless_mikeDC47BF20BBF0243F18510250Windows 64-bit,Prime95,v28.9,build 2
Verified2016-09-08Mark RoseDC47BF20BBF0243F21207560Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2020-10-13Sid & AndyNFno factor TF: 74-75
2020-01-01-anonymous-NFno factor TF: 73-74
2019-10-04-anonymous-NFno factor TF: 72-73
2016-09-08Mark RoseC-LLDC47BF20BBF0243F
2016-08-05endless_mikeC-LLDC47BF20BBF0243F
2015-03-06Gordon SpenceNFno factor TF: 71-72
2014-12-19tigreroarsNFno factor TF: 70-71
2014-12-19tigreroarsNFno factor TF: 69-70
2013-10-27VictordeHollanderNFno factor TF: 68-69
2008-10-14-anonymous-C-LL84198E0A08427E0D
2008-08-26-anonymous-NF-PM1B1=490000, B2=13965000
2007-01-16-anonymous-NFno factor TF: 1-68