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
47359579
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 455000
B2 = 9100000
LL
StatusDateUserResidueShiftSoftware
Bad2009-01-03-anonymous-FFFFFFFFFFFFFFFF6418225Windows 64-bit,Prime95,v25.7,build 4
Verified2013-06-10ATHEA2FBF7FB65E662726080103Windows 64-bit,Prime95,v27.9,build 1
Verified2015-10-13NoPolarBearsHereEA2FBF7FB65E662720120958Windows 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2018-01-17ktonyNFno factor TF: 72-73
2016-02-23Mark RoseNFno factor TF: 1-64
2015-10-13NoPolarBearsHereC-LLEA2FBF7FB65E6627
2013-06-10ATHC-LLEA2FBF7FB65E6627
2012-02-18Jerry HallettNF-PM1B1=455000, B2=9100000, E=12
2012-01-24GregNFno factor TF: 71-72
2012-01-23GregNFno factor TF: 70-71
2012-01-17Kyle AskineNFno factor TF: 69-70
2012-01-09Kyle AskineNFno factor TF: 68-69
2009-01-03-anonymous-C-LLFFFFFFFFFFFFFFFF
2008-03-29Carsten KossendeyNFno factor TF: 64-65
2008-03-29Carsten KossendeyNFno factor TF: 66-67
2008-03-29Carsten KossendeyNFno factor TF: 65-66
2008-03-29Carsten KossendeyNFno factor TF: 67-68