Use the form below to do your conversion.
Solution
Step1
Log21457=Log(457) ÷ Log(21)
Log(457)= 2.6599162000699
Log(21)=1.3222192947339
Log21457=2.6599162000699 ÷ 1.3222192947339
Ans=2.0117057818349
Step2
Alternatively, the logarithm can be calculated like this.