Use the form below to do your conversion.
Solution
Step1
Log139865=Log(9865) ÷ Log(13)
Log(9865)= 3.9940970895882
Log(13)=1.1139433523068
Log139865=3.9940970895882 ÷ 1.1139433523068
Ans=3.5855477581665
Step2
Alternatively, the logarithm can be calculated like this.