Use the form below to do your conversion.
Solution
Step1
Log217679=Log(7679) ÷ Log(21)
Log(7679)= 3.885304667589
Log(21)=1.3222192947339
Log217679=3.885304667589 ÷ 1.3222192947339
Ans=2.938472220957
Step2
Alternatively, the logarithm can be calculated like this.