Use the form below to do your conversion.
Solution
Step1
Log1311981=Log(11981) ÷ Log(13)
Log(11981)= 4.0784930681666
Log(13)=1.1139433523068
Log1311981=4.0784930681666 ÷ 1.1139433523068
Ans=3.6613110170464
Step2
Alternatively, the logarithm can be calculated like this.