Use the form below to do your conversion.
Solution
Step1
Log219491=Log(9491) ÷ Log(21)
Log(9491)= 3.9773119733969
Log(21)=1.3222192947339
Log219491=3.9773119733969 ÷ 1.3222192947339
Ans=3.0080577323577
Step2
Alternatively, the logarithm can be calculated like this.