Concept used: For a number to be a perfect square, each prime factor has to be paired. Calculation:
71232=2×2×2×2×2×2×3×7×53
The factors 3, 7 and 53 are not paired. Hence, 71232 must be multiplied by 1113 i.e. (3×7×53) for it to be a perfect square ∴ The number should be multiplied by 1113