Answer
$3$
Work Step by Step
Let $5^{\log_5 3}=x$. Taking the logarithm base 5 of both sides, then,
\begin{array}{l}
\log_5 5^{\log_5 3}=\log_5x\\
(\log_5 3)(\log_5 5)=\log_5x\\
(\log_5 3)(1)=\log_5x\\
\log_5 3=\log_5x\\
3=x
&\text{...since the logarithms have the same base}
\\
x=3
.\end{array}
Hence, $5^{\log_5 3}$ is equal to $
3
.$
