Use the form below to do your conversion.
Solution
Step1
Log139985=Log(9985) ÷ Log(13)
Log(9985)= 3.9993480692067
Log(13)=1.1139433523068
Log139985=3.9993480692067 ÷ 1.1139433523068
Ans=3.5902616240984
Step2
Alternatively, the logarithm can be calculated like this.