读入一个整数，显示它的所有的素数因子。例如，读入120，输出2,2,2,3,5-Read an integer, it shows all the prime factors. For example, read 120, the output 2,2,2,3,5

将一个正整数分解质因数。例如：输入90,打印出90=2*3*3*5。 -A positive integer decomposition of the quality factor. For example: input 90, print 90=2*3*3*5.

简单程序适合初学者 解决基本问题 输出一个整数的所以素数因子-A simple program for beginners to solve the basic problem of the output of an integer so prime factor

Factor.java is to help to find out the factor of integer(without 1 and itself) and the Number and NumTester is a very good material to study how to use debug.

该程序代码实现的功能是判断一个数是不是完数。一个正整数的因子是所有可以整除它的正整数。而一个数如果恰好等于除它本身外的因子之和，这个数就称为完数。-The function of the program code is whether a number is the number.A positive integer factors are all positive integer can be divided exactly by it.But if a number equals the b