Use the form below to do your conversion.
Solution
Step1
Log21707=Log(707) ÷ Log(21)
Log(707)= 2.8494194137969
Log(21)=1.3222192947339
Log21707=2.8494194137969 ÷ 1.3222192947339
Ans=2.1550278574405
Step2
Alternatively, the logarithm can be calculated like this.