Use the form below to do your conversion.
Solution
Step1
Log217531=Log(7531) ÷ Log(21)
Log(7531)= 3.8768526476013
Log(21)=1.3222192947339
Log217531=3.8768526476013 ÷ 1.3222192947339
Ans=2.9320799227798
Step2
Alternatively, the logarithm can be calculated like this.