Use the form below to do your conversion.
Solution
Step1
Log2015215=Log(15215) ÷ Log(20)
Log(15215)= 4.1822719566942
Log(20)=1.301029995664
Log2015215=4.1822719566942 ÷ 1.301029995664
Ans=3.2145853444061
Step2
Alternatively, the logarithm can be calculated like this.