Use the form below to do your conversion.
Solution
Step1
Log217975=Log(7975) ÷ Log(21)
Log(7975)= 3.9017306917292
Log(21)=1.3222192947339
Log217975=3.9017306917292 ÷ 1.3222192947339
Ans=2.9508952919299
Step2
Alternatively, the logarithm can be calculated like this.