Use the form below to do your conversion.
Solution
Step1
Log21455=Log(455) ÷ Log(21)
Log(455)= 2.6580113966571
Log(21)=1.3222192947339
Log21455=2.6580113966571 ÷ 1.3222192947339
Ans=2.0102651710222
Step2
Alternatively, the logarithm can be calculated like this.