Use the form below to do your conversion.
Solution
Step1
Log211997=Log(1997) ÷ Log(21)
Log(1997)= 3.3003780648707
Log(21)=1.3222192947339
Log211997=3.3003780648707 ÷ 1.3222192947339
Ans=2.496089777252
Step2
Alternatively, the logarithm can be calculated like this.