Use the form below to do your conversion.
Solution
Step1
Log139887=Log(9887) ÷ Log(13)
Log(9887)= 3.9950645341561
Log(13)=1.1139433523068
Log139887=3.9950645341561 ÷ 1.1139433523068
Ans=3.5864162444911
Step2
Alternatively, the logarithm can be calculated like this.