Use the form below to do your conversion.
Solution
Step1
Log21683=Log(683) ÷ Log(21)
Log(683)= 2.8344207036815
Log(21)=1.3222192947339
Log21683=2.8344207036815 ÷ 1.3222192947339
Ans=2.1436842700529
Step2
Alternatively, the logarithm can be calculated like this.