判断输入的数字是否质数,再判断这两个数是否互质-Input to determine whether the number of prime number, and then determine whether or not these two the number of coprime

中国剩余定理（CRT)的实现，输入的模数需要互素，结果为原来的数。-Chinese Remainder Theorem (CRT) implementation, modulus entered Coprime needs, the result is the original number.