The product of two whole numbers is 37. The square root

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The product of two whole numbers is 37. The square root of the difference of the numbers is

1. 8
2. 7.5
3. 6
4. 4.5

Correct Option: C

37 is a prime number.
∴ 37 = 1 × 37
∴ Required answer
= √37 − 1 = √36 = 6