Write a program to read a positive integer n and determine whether it is prime or composite. If it is composite, print its prime factorization.
The following are some sample input and output.
99 3 x 3 x 11
256 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2
As a reminder, data must be read from the file input.txt and output sent to the file output.txt.