What square root equals 638?

What square root equals 638? In other words, what number would you take the square root of to get 638? To solve this problem, we want to find x in the following equation:

√x = 638

To solve the √x = 638 equation, we first raise both sides to the power of 2 to eliminate the square root:

(√x)² = 638²
x = 638²

Then, we calculate 638² to get the following answer:

638² = 638 × 638
638² = 407,044

√407,044 = 638

We've provided the equation above to help you understand the underlying concept of solving problems like this. In the future, remember that you can solve all similar problems by simply multiplying the number by itself.

What Square Root Equals
Use the tool below to solve another problem like the one we solved on this page.

What square root equals 639?
Here is another square root problem that you may find interesting.