Use the form below to do your conversion.
Solution
Step1
Log219977=Log(9977) ÷ Log(21)
Log(9977)= 3.9989999722183
Log(21)=1.3222192947339
Log219977=3.9989999722183 ÷ 1.3222192947339
Ans=3.0244604568587
Step2
Alternatively, the logarithm can be calculated like this.