Square Root Calculator › Square root of 407
Square Root of 407
√407 ≈ 20.174241
407 is not a perfect square, so √407 is an irrational number that is approximately 20.174241. In simplified radical form, √407 = √407.
√407 lies between √400 = 20 and √441 = 21.
| Number | 407 |
| Square root (decimal) | 20.174241 |
| Simplified radical | √407 |
| Perfect square? | No |
| Rational? | No |
Calculate another square root
Nearby square roots
Frequently asked questions
Is 407 a perfect square?
No, 407 is not a perfect square, so its square root is irrational and approximately 20.174241.
What is the square root of 407 in simplest radical form?
√407 = √407 in simplest radical form.