# Square root of 642

### Square Root Calculator

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#### Square root result:

Sqrt(642). Find the square root of 642 or any other real number, positive or negative. Here are the answers to questions like: Square root of 642 or what is the square root of 642?

## 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, 25 is the square root of 625 because 252 = 25•25 = 625, -25 is square root of 625 because (-25)2 = (-25)•(-25) = 625. 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 642

NumberSqrt
The square root of 638 is 25.259
The square root of 639 is 25.278
The square root of 640 is 25.298
The square root of 641 is 25.318
The square root of 643 is 25.357
The square root of 644 is 25.377
The square root of 645 is 25.397
The square root of 646 is 25.417
The square root of 647 is 25.436