The cube root of $3375$ is

$\sqrt[3]{k}=\sqrt[3]{4}\times \sqrt[3]{5}\times \sqrt[3]{6}$, then $k=$_____.

If $\sqrt[3]{\frac{512}{x}}=\frac{8}{13}$, then $x=$_____.

$\sqrt[3]{\frac{729}{1331}}=\frac{9}{k}$, then $k=$ _____.

If $4\times 4\times 4=64$, then $\sqrt[3]{64}=$ _____

If $9\times 9\times 9=729$, then $\sqrt[3]{729}=$ _____.

If $7^3=343, \sqrt[3]{343}=$ _____