What number multiplied by itself equals 440?

Here we will answer: What number multiplied by itself gives 440? In other words, what number times itself will equal 440?

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 = 440
x ≈ 20.976

Square Root Method:
Take the square root of 440 to get the answer:

√440 ≈ 20.976

Exponent Method:
Make the base 440 and the exponent 0.5 to get the answer:

440^0.5 ≈ 20.976

There you go! Now you know how to calculate "What number multiplied by itself equals 440?"

The bottom line is that 20.976 times itself equals approximately 440 as illustrated here:

20.976 x 20.976 ≈ 440

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