Use the form below to do your conversion.
Solution
Step1
Log217129=Log(7129) ÷ Log(21)
Log(7129)= 3.853028614713
Log(21)=1.3222192947339
Log217129=3.853028614713 ÷ 1.3222192947339
Ans=2.9140617067522
Step2
Alternatively, the logarithm can be calculated like this.