Use the form below to do your conversion.
Solution
Step1
Log139821=Log(9821) ÷ Log(13)
Log(9821)= 3.9921557110426
Log(13)=1.1139433523068
Log139821=3.9921557110426 ÷ 1.1139433523068
Ans=3.583804959898
Step2
Alternatively, the logarithm can be calculated like this.