Use the form below to do your conversion.
Solution
Step1
Log21931=Log(931) ÷ Log(21)
Log(931)= 2.9689496809813
Log(21)=1.3222192947339
Log21931=2.9689496809813 ÷ 1.3222192947339
Ans=2.2454291000033
Step2
Alternatively, the logarithm can be calculated like this.