Use the form below to do your conversion.
Solution
Step1
Log219997=Log(9997) ÷ Log(21)
Log(9997)= 3.9998696921083
Log(21)=1.3222192947339
Log219997=3.9998696921083 ÷ 1.3222192947339
Ans=3.0251182296604
Step2
Alternatively, the logarithm can be calculated like this.