Use the form below to do your conversion.
Solution
Step1
Log217909=Log(7909) ÷ Log(21)
Log(7909)= 3.8981215755411
Log(21)=1.3222192947339
Log217909=3.8981215755411 ÷ 1.3222192947339
Ans=2.9481657022147
Step2
Alternatively, the logarithm can be calculated like this.