Use the form below to do your conversion.
Solution
Step1
Log215395=Log(5395) ÷ Log(21)
Log(5395)= 3.7319914490189
Log(21)=1.3222192947339
Log215395=3.7319914490189 ÷ 1.3222192947339
Ans=2.8225207905243
Step2
Alternatively, the logarithm can be calculated like this.