Use the form below to do your conversion.
Solution
Step1
Log217121=Log(7121) ÷ Log(21)
Log(7121)= 3.8525409857698
Log(21)=1.3222192947339
Log217121=3.8525409857698 ÷ 1.3222192947339
Ans=2.9136929109366
Step2
Alternatively, the logarithm can be calculated like this.