Use the form below to do your conversion.
Solution
Step1
Log139407=Log(9407) ÷ Log(13)
Log(9407)= 3.9734511440249
Log(13)=1.1139433523068
Log139407=3.9734511440249 ÷ 1.1139433523068
Ans=3.5670136509154
Step2
Alternatively, the logarithm can be calculated like this.