Smallest natural number to divide $88$ to make a perfect cube is

Smallest natural number to divide $88$ to make a perfect cube is
  1. $11$
  2. $2$
  3. $4$
  4. $8$

Solution

$88 = 2^{3} \times 11$. Divide by $11$ to get $8 = 2^{3}$.

Asked in: IMO

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