What number multiplied by itself equals 1821?

Here we will answer: What number multiplied by itself gives 1821? In other words, what number times itself will equal 1821?

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 = 1821
x ≈ 42.673

Square Root Method:
Take the square root of 1821 to get the answer:

√1821 ≈ 42.673

Exponent Method:
Make the base 1821 and the exponent 0.5 to get the answer:

1821^0.5 ≈ 42.673

There you go! Now you know how to calculate "What number multiplied by itself equals 1821?"

The bottom line is that 42.673 times itself equals approximately 1821 as illustrated here:

42.673 x 42.673 ≈ 1821

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