# Square root of 399

### Square Root Calculator

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#### Square root result:

Sqrt(399). Find the square root of 399 or any other real number, positive or negative. Here are the answers to questions like: Square root of 399 or what is the square root of 399?

## What is square root? Definition of square root

A square root of a number 'x' is a number y such that y2 = x, in other words, a number y whose square is y. For example, 19 is the square root of 361 because 192 = 19•19 = 361, -19 is square root of 361 because (-19)2 = (-19)•(-19) = 361. When writing math, people often use sqrt(x) to mean the square root of x. Read more about square root here: Square Root - Wikipedia and here: Square Root - Wolfram

## Square Symbol?

Here is the square root symbol. It is is denoted by √, known as the radical sign or radix. ### Square root of values around 399

NumberSqrt
The square root of 395 is 19.875
The square root of 396 is 19.900
The square root of 397 is 19.925
The square root of 398 is 19.950
The square root of 400 is 20.000
The square root of 401 is 20.025
The square root of 402 is 20.050
The square root of 403 is 20.075
The square root of 404 is 20.100