Use the form below to do your conversion.
Solution
Step1
Log213967=Log(3967) ÷ Log(21)
Log(3967)= 3.5984622004742
Log(21)=1.3222192947339
Log213967=3.5984622004742 ÷ 1.3222192947339
Ans=2.7215320596258
Step2
Alternatively, the logarithm can be calculated like this.