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Square Root Symbol›Perfect Squares Reference Table Perfect Squares List 1–400 with Square Roots By Mateo·Last updated July 2026 Quick answer: A perfect square is any integer that is the square of another integer. The perfect squares from 1 to 100 are 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100 — the squares…

Square Root Symbol›Negative Numbers Mathematical Concept Square Root of Negative Numbers By Mateo·Last updated July 2026 Quick answer: The square root of a negative number is not a real number. Within the real number system, √(−1) is undefined. In the complex number system, √(−1) = i, the imaginary unit, where i² = −1. The square…