2, 2, 2, 2, 2, 3
http://wiki.answers.com/Q/What_is_the_prime_factor...

96 does not have one although 96 has 2, 2, 2, 2, 2, 3
http://www.chacha.com/question/whatistheprimef...

A prime factor is a number that can not be broken down into any other numbers. For example 3 is a prime factor because the only way to get three is by multiplying 3 and 1 together.
http://www.ask.com/webanswers/Science/Mathematics...

163 is a prime number.
http://wiki.answers.com/Q/What_is_the_prime_factor...
