Introduction - If you have any usage issues, please Google them yourself
A positive integer factorization. For example: enter 90, print out 90 2*3*3*5.
Program analysis: the N decomposition of the quality factor, should first find a minimal prime number k, then complete the following steps:
(1) if the prime exactly equal to N, then the prime factor decomposition process has ended, you can print out.
(2) if n<>k, but n is divisible by K, the value of K should be printed, and divided by N K, a positive integer as a new n you,
Repeat the first step.
(3) if n is not divisible by K, with k+1 as the value of K, repeat the first step.