#include<stdio.h>
#include<math.h>
void main()
{
    int i,p,q,j;
    double n;
    n=18923;
    for(i=3;i<=sqrt(n);i+2)
    {
        for(j=5;j<=sqrt(n);j+2)
            if(i*j==n)
            {p=i;q=j;break;}
            break;
    }
            if(p*q==n)
                printf("\np=%5d,\nq=%5d",p,q);
            else
                printf("这样的素数p，q不存在！");        
   
               
            
}