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 Description  
 Cube Root:  One of three equal (identical) factors of a given number.
If the cube root of a number b is a (i.e., = a), then a3 = b.

For example:

4 is the cube root of 64 because 4 x 4 x 4 = 64.

-5 is the cube root of -125 because -5 x -5 x -5 = -125.