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

自定义一个函数，使得实现生成整数m和n的最大公因子。-Make a fitness by self for making Generation integer m and n of the greatest common factor come true

This paper discusses the impact of using 3-phase and multipules converter circuit commonly found in unity power factor at input AC mains and regulates output voltage.3-phase thyristor rectifiers have been used in industries for obtaining a variable