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
48027143
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 750000
B2 = 750000
LL
StatusDateUserResidueShiftSoftware
Bad2010-06-27-anonymous-82CA972B5503AB1A21593465Windows,Prime95,v24 final,(aka Wc1)
Verified2011-05-15Randall HoseD7640F6220AECE1528121639Windows 64-bit,Prime95,v26.5,build 5
Verified2016-08-22AirSquirrelsD7640F6220AECE150clLucas v1.04
History
DateUserTypeResult
2017-12-14Sid & AndyNFno factor TF: 72-73
2016-08-22AirSquirrelsC-LLD7640F6220AECE15
2015-08-16Sid & AndyNFno factor TF: 71-72
2015-08-09Mark RoseNFno factor TF: 70-71
2015-08-02Gordon SpenceNFno factor TF: 69-70
2011-05-15Randall HoseC-LLD7640F6220AECE15
2010-06-27-anonymous-C-LL82CA972B5503AB1A
2009-11-04-anonymous-NF-PM1B1=750000
2008-06-13James HintzNFno factor TF: 1-69
2003-10-08Thomas MullenNFno factor TF: 1-60
2003-06-09Thomas MullenNFno factor TF: 1-59