What number multiplied by itself equals 643?

Here we will answer: What number multiplied by itself gives 643? In other words, what number times itself will equal 643?

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 = 643
x ≈ 25.357

Square Root Method:
Take the square root of 643 to get the answer:

√643 ≈ 25.357

Exponent Method:
Make the base 643 and the exponent 0.5 to get the answer:

643^0.5 ≈ 25.357

There you go! Now you know how to calculate "What number multiplied by itself equals 643?"

The bottom line is that 25.357 times itself equals approximately 643 as illustrated here:

25.357 x 25.357 ≈ 643

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