Use the form below to do your conversion.
Solution
Step1
Log25215=Log(215) ÷ Log(25)
Log(215)= 2.3324384599156
Log(25)=1.397940008672
Log25215=2.3324384599156 ÷ 1.397940008672
Ans=1.668482513875
Step2
Alternatively, the logarithm can be calculated like this.