How is a perfect square number identified?
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Answer:
No number can be a perfect square unless its digital root is 1, 4, 7, or 9. ... (To find digital root of a number, add all its digits. If this sum is more than 9, add the digits of this sum. The single digit obtained at the end is the digital root of the number.)
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Answer:
No number can be a perfect square unless its digital root is 1, 4, 7, or 9. ... (To find digital root of a number, add all its digits. If this sum is more than 9, add the digits of this sum. The single digit obtained at the end is the digital root of the number.)A perfect square is a number that can be expressed as the product of two equal integers. You can tell if a number by finding its square root and seeing if that square root is a whole integerIn mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 32 and can be written as 3 × 3. ... The unit of area is defined as the area of a unit square (1×1)
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