Use the form below to do your conversion.
Solution
Step1
Log2015121=Log(15121) ÷ Log(20)
Log(15121)= 4.1795805133954
Log(20)=1.301029995664
Log2015121=4.1795805133954 ÷ 1.301029995664
Ans=3.2125166424486
Step2
Alternatively, the logarithm can be calculated like this.