Use the form below to do your conversion.
Solution
Step1
Log139917=Log(9917) ÷ Log(13)
Log(9917)= 3.9963803132334
Log(13)=1.1139433523068
Log139917=3.9963803132334 ÷ 1.1139433523068
Ans=3.5875974347864
Step2
Alternatively, the logarithm can be calculated like this.