Question

The number of zeroes at the end of N = 18! + 19! IS

Answer 1

$\begin{table} \begin{tabular}{|l|l|l|} \hline  2 & 4 & ~ \\ \hline 2 & 2 & ~ \\   ~ & 1 & ~ \\ \hline \end{tabular} \end{table}$