What number multiplied by itself equals 638?

Here we will answer: What number multiplied by itself gives 638? In other words, what number times itself will equal 638?

We have identified many different ways of getting the answer to this question:

Algebra Method:
Make an algebra equation and solve for x:

x • x = 638
x ≈ 25.259

Square Root Method:
Take the square root of 638 to get the answer:

√638 ≈ 25.259

Exponent Method:
Make the base 638 and the exponent 0.5 to get the answer:

638^0.5 ≈ 25.259

There you go! Now you know how to calculate "What number multiplied by itself equals 638?"

The bottom line is that 25.259 times itself equals approximately 638 as illustrated here:

25.259 x 25.259 ≈ 638

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The answer on this page is rounded to the nearest thousandth, if necessary.