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13iii) 4704 / h = (25 × 3 × 72) / h
= 23 × 22 × 3 × 72 / h 

From this, in order to make a perfect cube, we can simply take away the factors that are not already a perfect cube. So (22 × 3 × 72) can be removed. Therefore, h is 22 × 3 × 72 = 588.

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