Use the form below to do your conversion.
Solution
Step1
Log217117=Log(7117) ÷ Log(21)
Log(7117)= 3.8522969658269
Log(21)=1.3222192947339
Log217117=3.8522969658269 ÷ 1.3222192947339
Ans=2.91350835763
Step2
Alternatively, the logarithm can be calculated like this.