Question

Some numbers can be shown by two rectangles, for example. Give at least five other such examples.

$$12 \longrightarrow \underset{3\times 4}{\begin{matrix} \bullet &\bullet &\bullet &\bullet \\ \bullet &\bullet & \bullet &\bullet \\ \bullet & \bullet &\bullet &\bullet \end{matrix} }$$ or $$\underset{2\times 6}{\begin{matrix} \bullet &\bullet & \bullet &\bullet & \bullet & \bullet \\ \bullet & \bullet & \bullet & \bullet & \bullet &\bullet \\ & & & \end{matrix}}$$