Use the form below to do your conversion.
Solution
Step1
Log2015115=Log(15115) ÷ Log(20)
Log(15115)= 4.1794081515138
Log(20)=1.301029995664
Log2015115=4.1794081515138 ÷ 1.301029995664
Ans=3.2123841613512
Step2
Alternatively, the logarithm can be calculated like this.