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
26458351
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 270
P-1
B1 = 600000
B2 = 154081200
LL
StatusDateUserResidueShiftSoftware
Verified2004-12-13Artemith483901A20929A68915651624Windows,Prime95,v23,(aka WZ1)
Verified2011-07-28Reed_Young483901A20929A6891054462Linux 64-bit,Prime95,v25.9,build 4
History
DateUserTypeResult
2021-12-14Sid & AndyNF-PM1B1=600000, B2=154081200
2021-10-17TheJudgerNFno factor TF: 74-75
2021-09-30TheJudgerNFno factor TF: 73-74
2021-08-25TheJudgerNFno factor TF: 72-73
2021-08-25TheJudgerNFno factor TF: 71-72
2021-04-28mikrNFno factor TF: 70-71
2018-05-25VictordeHollanderNFno factor TF: 69-70
2018-03-20VictordeHollanderNFno factor TF: 68-69
2016-12-07NRNFno factor TF: 67-68
2011-07-28Reed_YoungC-LL483901A20929A689
2004-12-13-anonymous-C-LL483901A20929A689
2004-11-22-anonymous-NF-PM1B1=405000
2004-08-06Matt PerryNFno factor TF: 1-67
2004-06-04markrNFno factor TF: 1-62