What number multiplied by itself equals 6421?

Here we will answer: What number multiplied by itself gives 6421? In other words, what number times itself will equal 6421?

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 = 6421
x ≈ 80.131

Square Root Method:
Take the square root of 6421 to get the answer:

√6421 ≈ 80.131

Exponent Method:
Make the base 6421 and the exponent 0.5 to get the answer:

6421^0.5 ≈ 80.131

There you go! Now you know how to calculate "What number multiplied by itself equals 6421?"

The bottom line is that 80.131 times itself equals approximately 6421 as illustrated here:

80.131 x 80.131 ≈ 6421

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