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
41674859
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 455000
B2 = 7962500
LL
StatusDateUserResidueShiftSoftware
Bad2010-03-11Reed_Young8AF82740FF066BF040690284Linux 64-bit,Prime95,v25.9,build 4
Verified2010-09-18jeamyAB64074E8ED9AE7C29659698Windows 64-bit,Prime95,v25.11,build 2
Verified2016-10-11MadPoo 🙂AB64074E8ED9AE7C15467472Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2020-01-19-anonymous-NFno factor TF: 73-74
2019-10-04-anonymous-NFno factor TF: 72-73
2016-10-11MadPoo 🙂C-LLAB64074E8ED9AE7C
2015-07-25GregNFno factor TF: 71-72
2015-01-19David CampeauNFno factor TF: 70-71
2015-01-07VictordeHollanderNFno factor TF: 69-70
2010-09-18jeamyC-LLAB64074E8ED9AE7C
2010-03-11Reed_YoungC-LL8AF82740FF066BF0
2009-08-14Reed_YoungNF-PM1B1=455000, B2=7962500
2007-04-07MarzbugNFno factor TF: 1-69