Use the form below to do your conversion.
Solution
Step1
Log218389=Log(8389) ÷ Log(21)
Log(8389)= 3.9237101943966
Log(21)=1.3222192947339
Log218389=3.9237101943966 ÷ 1.3222192947339
Ans=2.9675184820126
Step2
Alternatively, the logarithm can be calculated like this.