Use the form below to do your conversion.
Solution
Step1
Log217457=Log(7457) ÷ Log(21)
Log(7457)= 3.8725641430907
Log(21)=1.3222192947339
Log217457=3.8725641430907 ÷ 1.3222192947339
Ans=2.9288365088258
Step2
Alternatively, the logarithm can be calculated like this.