Question

Find the least number which must be added to the number 2252 to make them a perfect square.

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Answer 1

Answer:

Correct option is

B

7,42

252=

2×2

×

3×3

×7

The prime factor 7 does not appear in pairs. To make 252 a perfect square we need one more 7.

Hence, the smallest number by which 252 must be multiplied so that

the product is a perfect square is 7.

And, 252×7=

2×2

×

3×3

×

7×7

252×7

=

2×2

×

3×3

×

7×7

=2×3×7=42

Answer 2

Step-by-step explanation:

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