Use the form below to do your conversion.
Solution
Step1
Log139131=Log(9131) ÷ Log(13)
Log(9131)= 3.9605183427807
Log(13)=1.1139433523068
Log139131=3.9605183427807 ÷ 1.1139433523068
Ans=3.5554037236983
Step2
Alternatively, the logarithm can be calculated like this.