Use the form below to do your conversion.
Solution
Step1
Log139487=Log(9487) ÷ Log(13)
Log(9487)= 3.9771289005807
Log(13)=1.1139433523068
Log139487=3.9771289005807 ÷ 1.1139433523068
Ans=3.5703152160696
Step2
Alternatively, the logarithm can be calculated like this.