Use the form below to do your conversion.
Solution
Step1
Log219731=Log(9731) ÷ Log(21)
Log(9731)= 3.9881574725568
Log(21)=1.3222192947339
Log219731=3.9881574725568 ÷ 1.3222192947339
Ans=3.0162602288748
Step2
Alternatively, the logarithm can be calculated like this.