Use the form below to do your conversion.
Solution
Step1
Log2015715=Log(15715) ÷ Log(20)
Log(15715)= 4.1963143853536
Log(20)=1.301029995664
Log2015715=4.1963143853536 ÷ 1.301029995664
Ans=3.2253786610139
Step2
Alternatively, the logarithm can be calculated like this.