Use the form below to do your conversion.
Solution
Step1
Log218729=Log(8729) ÷ Log(21)
Log(8729)= 3.9409644934928
Log(21)=1.3222192947339
Log218729=3.9409644934928 ÷ 1.3222192947339
Ans=2.9805679808098
Step2
Alternatively, the logarithm can be calculated like this.