\[A = \left\{ 1,\ 2,\ 3,\ 4,\ 6,\ 12 \right\};\ \ \ \]
\[B = \left\{ 1,\ 2,\ 3,\ 5,\ 6,\ 10\ ,15,\ 30 \right\}\]
\[A \cap B = \left\{ 1,\ 2,\ 3,\ 6 \right\};\ \ \]
\[\ A \cup B = \left\{ 1,\ 2,\ 3,\ 4,\ 5,\ 6,\ 10\ ,12,\ 15,\ 30 \right\}\]