Use the form below to do your conversion.
Solution
Step1
Log2015103=Log(15103) ÷ Log(20)
Log(15103)= 4.179063222395
Log(20)=1.301029995664
Log2015103=4.179063222395 ÷ 1.301029995664
Ans=3.2121190413156
Step2
Alternatively, the logarithm can be calculated like this.