Question

find the smallest number by which 7776 is to get a perfect square
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Answer 1

Answer:

2

Explanation:

because its unit place has even no so it is divisible by 2

Answer 2

Answer:

LCM of 7776: 2×2×2×2×2×3×3×3×3×3 = 7776

2 and 3 doesn't have pair so multiply 2 and 3 both sides

7776×3×2 = 2×2×2×2×2×2×3×3×3×3×3×3

√46656 = 2×2×2×3×3×3

√46656 = 216

The smallest numbers are 2 and 3.

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