Use the form below to do your conversion.
Solution
Step1
Log217729=Log(7729) ÷ Log(21)
Log(7729)= 3.8881233072979
Log(21)=1.3222192947339
Log217729=3.8881233072979 ÷ 1.3222192947339
Ans=2.9406039699945
Step2
Alternatively, the logarithm can be calculated like this.