Use the form below to do your conversion.
Solution
Step1
Log139931=Log(9931) ÷ Log(13)
Log(9931)= 3.9969929818907
Log(13)=1.1139433523068
Log139931=3.9969929818907 ÷ 1.1139433523068
Ans=3.588147434619
Step2
Alternatively, the logarithm can be calculated like this.