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
49319059
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 273
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShiftSoftware
Bad2010-12-02ANONYMOUS9A26CB668C29502C14127859Windows 64-bit,Prime95,v25.9,build 4
Verified2011-11-03mf_gh61D866A4B2F4D4C147715358Linux 64-bit,Prime95,v25.11,build 2
Verified2016-09-06endless_mike61D866A4B2F4D4C128056802Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2019-07-06-anonymous-NFno factor TF: 73-74
2019-04-26Sid & AndyNF-PM1B1=1000000, B2=20000000, E=6
2017-09-09Sid & AndyNFno factor TF: 72-73
2016-09-06endless_mikeC-LL61D866A4B2F4D4C1
2015-08-17AirSquirrelsNFno factor TF: 71-72
2015-08-09Mark RoseNFno factor TF: 70-71
2015-07-24Gordon SpenceNFno factor TF: 69-70
2011-11-03mf_ghC-LL61D866A4B2F4D4C1
2010-12-02ANONYMOUSC-LL9A26CB668C29502C
2010-06-17ANONYMOUSNF-PM1B1=785000
2008-07-25Team Prime RibNFno factor TF: 1-69
2008-06-03-anonymous-NFno factor TF: 1-64
2007-07-041997rj7NFno factor TF: 1-63
2003-11-08Team Prime RibNFno factor TF: 1-59