求助大家一道prep的题目。For every positive even integer n, the function h(n) is defined to be the product of all the integers from 2 to n ,inclusive ,if P is the smallest prime factor of h(n)+1,then P is
是选择P的范围。
答案是四十以上~
彻底不知道怎么做了作者: francoisw 时间: 2013-6-19 06:09