What number multiplied by itself equals 251?

Here we will answer: What number multiplied by itself gives 251? In other words, what number times itself will equal 251?

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 = 251
x ≈ 15.843

Square Root Method:
Take the square root of 251 to get the answer:

√251 ≈ 15.843

Exponent Method:
Make the base 251 and the exponent 0.5 to get the answer:

251^0.5 ≈ 15.843

There you go! Now you know how to calculate "What number multiplied by itself equals 251?"

The bottom line is that 15.843 times itself equals approximately 251 as illustrated here:

15.843 x 15.843 ≈ 251

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