Use the form below to do your conversion.
Solution
Step1
Log214991=Log(4991) ÷ Log(21)
Log(4991)= 3.6981875698661
Log(21)=1.3222192947339
Log214991=3.6981875698661 ÷ 1.3222192947339
Ans=2.7969547748964
Step2
Alternatively, the logarithm can be calculated like this.