Given: The given number is 540 Concept Used: Concept of factorization of a number Calculation:
Here 540=4×5×3×9 4 and 9 are perfect square number but 5 and 3 appears only once That means we have to multiple 540 by 5 × 3 = 15 to obtain the required perfect square number ∴ The least number is 15 which need to multiply with 540 to get a perfect square number.