Question

Which is the smallest number to be divide in 578 to get a perfect sq number. Also the square root of it is

1) 3, 17

2) 3, 34

3) 2 , 17

4) None of these

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Answer 1

Answer:

Prime factor of 578 = 2 x 17 x 17

so to make 578 a perfect square, we have to divide by 2.

so smallest number = 2.

and

$\sqrt{289} = \sqrt{17 \times 17} = 17$

so option 3) is correct