Use the form below to do your conversion.
Solution
Step1
Log219101=Log(9101) ÷ Log(21)
Log(9101)= 3.9590891143674
Log(21)=1.3222192947339
Log219101=3.9590891143674 ÷ 1.3222192947339
Ans=2.9942757076194
Step2
Alternatively, the logarithm can be calculated like this.