\end{item}
\end{itemize}
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- The factorial of the number $10$ is $\factorial{10}$.
+ The factorial of the number $10$ is $\factorial{10}$, and the
+ least common multiple of $4$ and $6$ is $\lcm{\set{4,6}} =
+ 12$.
The direct sum of $V$ and $W$ is $\directsum{V}{W}$. Or three
things, $\directsumthree{U}{V}{W}$. How about more things? Like