If $x=720$ and $ax$ is a perfect cube where $a$ is a positive integer, what is the smallest possible value of $\sqrt[3]{ax}$?
Question:
If $x=720$ and $ax$ is a perfect cube where $a$ is a positive integer, what is the smallest possible value of $\sqrt[3]{ax}$?
Answer:
Let's think step by step.

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If $x=720$ and $ax$ is a perfect cube where $a$ is a positive integer, what is the smallest possible value of $\sqrt[3]{ax}$?
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