What number multiplied by itself equals 243?

Here we will answer: What number multiplied by itself gives 243? In other words, what number times itself will equal 243?

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 = 243
x ≈ 15.588

Square Root Method:
Take the square root of 243 to get the answer:

√243 ≈ 15.588

Exponent Method:
Make the base 243 and the exponent 0.5 to get the answer:

243^0.5 ≈ 15.588

There you go! Now you know how to calculate "What number multiplied by itself equals 243?"

The bottom line is that 15.588 times itself equals approximately 243 as illustrated here:

15.588 x 15.588 ≈ 243

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