Quick answer
The square root of 144 is 12, because 12 × 12 = 144.
How it works
The nth root of a number is the value that, multiplied by itself n times, gives the number.
Formula
ⁿ√x = x^(1/n)
Assumptions & limitations
- Results are rounded for display.
Frequently asked questions
Can you take the cube root of a negative number?
Yes. The cube root of −27 is −3. Even roots (square, 4th) of negatives aren't real numbers.