Use the form below to do your conversion.
Solution
Step1
Log139515=Log(9515) ÷ Log(13)
Log(9515)= 3.978408792623
Log(13)=1.1139433523068
Log139515=3.978408792623 ÷ 1.1139433523068
Ans=3.5714641901532
Step2
Alternatively, the logarithm can be calculated like this.