greatest common divisors (GCD) of 23^31 , 23^17
$$\small{\begin{array}{l|rclclclcl}\text{Number 1:} & 23^{31} &=& 23^{31} &&&&&& \\
\text{Number 2:} & 23^{17} &=& 23^{\textcolor[rgb]{1,0,0}{17}} && && && \\
\hline \text{The lowest Exponent}\\ \text{ of each prime number} &\text{GCD}&=& 23^{\textcolor[rgb]{1,0,0}{17}}&&&&&&
\end{array}}}$$
greatest common divisors (GCD) of 23^31 , 23^17
$$\small{\begin{array}{l|rclclclcl}\text{Number 1:} & 23^{31} &=& 23^{31} &&&&&& \\
\text{Number 2:} & 23^{17} &=& 23^{\textcolor[rgb]{1,0,0}{17}} && && && \\
\hline \text{The lowest Exponent}\\ \text{ of each prime number} &\text{GCD}&=& 23^{\textcolor[rgb]{1,0,0}{17}}&&&&&&
\end{array}}}$$