What number multiplied by itself equals 648?

Here we will answer: What number multiplied by itself gives 648? In other words, what number times itself will equal 648?

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 = 648
x ≈ 25.456

Square Root Method:
Take the square root of 648 to get the answer:

√648 ≈ 25.456

Exponent Method:
Make the base 648 and the exponent 0.5 to get the answer:

648^0.5 ≈ 25.456

There you go! Now you know how to calculate "What number multiplied by itself equals 648?"

The bottom line is that 25.456 times itself equals approximately 648 as illustrated here:

25.456 x 25.456 ≈ 648

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