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# Cube roots review

Review cube roots, and try some practice problems.

### Cube roots

The cube root of a number is the factor that we multiply by itself three times to get that number.

The symbol for cube root is .

Finding the cube root of a number is the opposite of cubing a number.

**Example:**

=

So =

*Want to learn more about finding cube roots? Check out this video.*

## Finding cube roots

If we can't figure out what factor multiplied by itself three times will result in the given number, we can make a factor tree.

**Example:**

Here is the factor tree for :

So the prime factorization of is .

We're looking for , so we want to split the prime factors into three identical groups.

Notice that we can rearrange the factors like so:

So .

So is .