Use the form below to do your conversion.
Solution
Step1
Log219899=Log(9899) ÷ Log(21)
Log(9899)= 3.9955913242524
Log(21)=1.3222192947339
Log219899=3.9955913242524 ÷ 1.3222192947339
Ans=3.021882482101
Step2
Alternatively, the logarithm can be calculated like this.