The square of 7744 and 2925
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Hi
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So now we know the digital root of 7,744 is 4. Is 4 in the list of digital roots that are always a square root (1, 4, 7 or 9)? Answer: YES, 4 is in the list of digital roots that are always perfect squares. We can conclude that 7,744 could be a perfect square!
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