What number multiplied by itself equals 404?

Here we will answer: What number multiplied by itself gives 404? In other words, what number times itself will equal 404?

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 = 404
x ≈ 20.1

Square Root Method:
Take the square root of 404 to get the answer:

√404 ≈ 20.1

Exponent Method:
Make the base 404 and the exponent 0.5 to get the answer:

404^0.5 ≈ 20.1

There you go! Now you know how to calculate "What number multiplied by itself equals 404?"

The bottom line is that 20.1 times itself equals approximately 404 as illustrated here:

20.1 x 20.1 ≈ 404

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