What number multiplied by itself equals 221?

Here we will answer: What number multiplied by itself gives 221? In other words, what number times itself will equal 221?

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 = 221
x ≈ 14.866

Square Root Method:
Take the square root of 221 to get the answer:

√221 ≈ 14.866

Exponent Method:
Make the base 221 and the exponent 0.5 to get the answer:

221^0.5 ≈ 14.866

There you go! Now you know how to calculate "What number multiplied by itself equals 221?"

The bottom line is that 14.866 times itself equals approximately 221 as illustrated here:

14.866 x 14.866 ≈ 221

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