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
48665891
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 800000
B2 = 16000000
LL
StatusDateUserResidueShiftSoftware
Bad2011-03-12raymondfA8E73E7923282D9823440251Linux 64-bit,Prime95,v25.7,build 3
Verified2015-12-06Architects Cubed7E5341B1E5DA218C15248094Linux 64-bit,Prime95,v27.9,build 1
Verified2016-08-27AirSquirrels7E5341B1E5DA218C0clLucas v1.04
History
DateUserTypeResult
2018-11-23Sid & AndyNF-PM1B1=800000, B2=16000000, E=6
2017-12-18Sid & AndyNFno factor TF: 72-73
2016-08-27AirSquirrelsC-LL7E5341B1E5DA218C
2015-12-06Architects CubedC-LL7E5341B1E5DA218C
2015-08-08Mark RoseNFno factor TF: 71-72
2015-07-26Mark RoseNFno factor TF: 70-71
2011-03-12raymondfC-LLA8E73E7923282D98
2009-11-27ANONYMOUSNF-PM1B1=690000
2008-06-13ahmeraliNFno factor TF: 1-70
2007-12-031997rj7NFno factor TF: 1-63
2003-06-06Thomas MullenNFno factor TF: 1-59