Use the form below to do your conversion.
Solution
Step1
Log215623=Log(5623) ÷ Log(21)
Log(5623)= 3.7499680835094
Log(21)=1.3222192947339
Log215623=3.7499680835094 ÷ 1.3222192947339
Ans=2.8361165946108
Step2
Alternatively, the logarithm can be calculated like this.