Use the form below to do your conversion.
Solution
Step1
Log219973=Log(9973) ÷ Log(21)
Log(9973)= 3.9988258190403
Log(21)=1.3222192947339
Log219973=3.9988258190403 ÷ 1.3222192947339
Ans=3.0243287440795
Step2
Alternatively, the logarithm can be calculated like this.