论文部分内容阅读
设n为大于1的正整数,对于任意整数a,a除以n后,所得的余数r有n种可能的取值:0,1,2,…,n-1
Let n be a positive integer greater than 1. For any integer a, a is divided by n. The resulting remainder r has n possible values: 0, 1, 2, ..., n-1