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square number

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A **square number** is an integer that can be expressed as the product of an integer multiplied by itself. For example, 1, 4, 9, and 16 are square numbers because they are 1×1, 2×2, 3×3, and 4×4 respectively. Square numbers play an important role in various fields of mathematics, including algebra, geometry, and number theory. They are often encountered in problems involving areas of squares, quadratic equations, and integer sequences.

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