1280 when divided by a smallest number becomes perfect square
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1280=2×2×2×2×2×2×2×2×5
pairing of its prime factors
1280=2×2×2×2×2×2×2×2×5
5 is remain
to become a perfect square we must be divided by 5 in 1280 we get 256
256 is a perfect square
√256=16
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divide by 5 to get 256
ashmitkumar2:
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