Use the form below to do your conversion.
Solution
Step1
Log215107=Log(5107) ÷ Log(21)
Log(5107)= 3.7081658578555
Log(21)=1.3222192947339
Log215107=3.7081658578555 ÷ 1.3222192947339
Ans=2.8045013959668
Step2
Alternatively, the logarithm can be calculated like this.