Which one of the following is the smallest number by which 2880 must be divided in order to make it a perfect square?
Which one of the following is the smallest number by which 2880 must be divided in order to make it a perfect square?
Explanation
2880 = 2⁶ × 3² × 5.
To make it a perfect square, we need to divide by 5 because it's the only prime factor with an odd exponent.