Explanation:

In mathematics, a cube root of a number, denoted  or x^1/3, is a number a such that a³ = x. (Our solved example in mathguru.com uses this concept)

All real numbers have exactly one real cube root and a pair of complex conjugate roots, and all nonzero complex numbers have three distinct complex cube roots. For example, the real cube root of 8 is 2, because 2³ = 8.

http://en.wikipedia.org/wiki/Cube_root

In number theory, the prime factors of a positive integer are the prime numbers that divide that integer exactly, without leaving a remainder. The process of finding these numbers is called integer factorization, or prime factorization.

To shorten prime factorization, numbers are often expressed in powers, so

(Our solved example in mathguru.com uses this concept)

http://en.wikipedia.org/wiki/Prime_factor

The above explanation is copied from Wikipedia, the free encyclopedia and is remixed as allowed under the Creative Commons Attribution- ShareAlike 3.0 Unported License.