What number multiplied by itself equals 688?

Here we will answer: What number multiplied by itself gives 688? In other words, what number times itself will equal 688?

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 = 688
x ≈ 26.23

Square Root Method:
Take the square root of 688 to get the answer:

√688 ≈ 26.23

Exponent Method:
Make the base 688 and the exponent 0.5 to get the answer:

688^0.5 ≈ 26.23

There you go! Now you know how to calculate "What number multiplied by itself equals 688?"

The bottom line is that 26.23 times itself equals approximately 688 as illustrated here:

26.23 x 26.23 ≈ 688

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