Use the form below to do your conversion.
Solution
Step1
Log217427=Log(7427) ÷ Log(21)
Log(7427)= 3.8708134239156
Log(21)=1.3222192947339
Log217427=3.8708134239156 ÷ 1.3222192947339
Ans=2.9275124325686
Step2
Alternatively, the logarithm can be calculated like this.