What number multiplied by itself equals 642?

Here we will answer: What number multiplied by itself gives 642? In other words, what number times itself will equal 642?

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 = 642
x ≈ 25.338

Square Root Method:
Take the square root of 642 to get the answer:

√642 ≈ 25.338

Exponent Method:
Make the base 642 and the exponent 0.5 to get the answer:

642^0.5 ≈ 25.338

There you go! Now you know how to calculate "What number multiplied by itself equals 642?"

The bottom line is that 25.338 times itself equals approximately 642 as illustrated here:

25.338 x 25.338 ≈ 642

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