Use the form below to do your conversion.
Solution
Step1
Log139115=Log(9115) ÷ Log(13)
Log(9115)= 3.959756672991
Log(13)=1.1139433523068
Log139115=3.959756672991 ÷ 1.1139433523068
Ans=3.5547199638032
Step2
Alternatively, the logarithm can be calculated like this.