Square Root of 1
The square root of 1 is about 1. Square roots reverse squaring and are essential in geometry and the quadratic formula.
√1 = 1 exactly: 1 is the square of 1, so the table shows the whole truth with no rounding at all. The ladder around it confirms the fit — 0 sits 1 below and 4 sits 3 above, gaps that widen by exactly two at every rung. The geometry backs the number: a square with side 1 covers exactly 1 square units of area, the picture behind every fact on this page. The modular checks agree as well: divided by 9, 1 leaves 1, one of the 0, 1, 4, 7 remainders every square is allowed.
| Expression | Value |
|---|---|
| √1 | 1 |
Frequently asked questions
What is the square root of 1?
The square root of 1 is about 1. It is the number that, multiplied by itself, gives 1.
Is 1 a perfect square?
Yes — 1 × 1 = 1, so 1 is a perfect square and its square root is exact.
What does √ mean?
√ is the radical sign, short for square root. √1 asks: which number times itself equals 1? Here the answer is about 1.