Find the least number by which 45 must be divided to make it a perfect square.

Given: A number $45$.

To do: To find the least number by which $45$ must be divided to make it a perfect square.

Solution:
 

The least number is $5$.

As, $\frac{45}{5}=9$

And $9$ is perfect square as $\sqrt{9}=3$.

Thus, the least number is $5$ by which $45$ must be divided to make it a perfect square.

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Updated on: 10-Oct-2022

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