[tex]\it \left.\begin{aligned}\it x<15\\ \\ x\in M_4 \\ \\ x\in\mathbb{N}^*\end{aligned}\right\} \Rightarrow A=\{4,\ 8,\ 12\}\\ \\ \\ \left.\begin{aligned}\it y \vdots\ 2\\ \\ \it y\in D_{36} \\ \\ y\in\mathbb{N}\end{aligned}\right\} \Rightarrow B=\{2,\ 4,\ 6,\ 12,\ 18,\ 36\}\\ \\ \\ \left.\begin{aligned}\it z=2^n\\ \\ \it n\in D_{4} \\ \\ z\in\mathbb{N}\end{aligned}\right\} \Rightarrow C=\{2,\ 4,\ 16\}\\ \\ \\ A\cap B\cap C=\{4\}[/tex]
