What number multiplied by itself equals 646?

Here we will answer: What number multiplied by itself gives 646? In other words, what number times itself will equal 646?

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 = 646
x ≈ 25.417

Square Root Method:
Take the square root of 646 to get the answer:

√646 ≈ 25.417

Exponent Method:
Make the base 646 and the exponent 0.5 to get the answer:

646^0.5 ≈ 25.417

There you go! Now you know how to calculate "What number multiplied by itself equals 646?"

The bottom line is that 25.417 times itself equals approximately 646 as illustrated here:

25.417 x 25.417 ≈ 646

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