Two planets, A and B are orbiting a common star in circular orbits of radii $R_{A}$ and $R_{B}$, respectively, with $R_{B}=2 R_{A}$. The planet $B$ is $4 \sqrt{2}$ times more massive than planet A. The ratio $\left(\frac{L_{B}}{L_{A}}\right)$ of angular momentum ( $L_{B}$ ) of planet B to that of planet $A\left(L_{A}\right)$ is closest to integer $\_\_\_\_$ .