Use the form below to do your conversion.
Solution
Step1
Log2115715=Log(15715) ÷ Log(21)
Log(15715)= 4.1963143853536
Log(21)=1.3222192947339
Log2115715=4.1963143853536 ÷ 1.3222192947339
Ans=3.1736901753488
Step2
Alternatively, the logarithm can be calculated like this.