What number multiplied by itself equals 402?

Here we will answer: What number multiplied by itself gives 402? In other words, what number times itself will equal 402?

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 = 402
x ≈ 20.05

Square Root Method:
Take the square root of 402 to get the answer:

√402 ≈ 20.05

Exponent Method:
Make the base 402 and the exponent 0.5 to get the answer:

402^0.5 ≈ 20.05

There you go! Now you know how to calculate "What number multiplied by itself equals 402?"

The bottom line is that 20.05 times itself equals approximately 402 as illustrated here:

20.05 x 20.05 ≈ 402

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