prime factorization in c code example

Example 1: prime number c

#include <stdio.h>
int main()
{
   int i, num, p = 0;
   printf("Please enter a number: \n");
   scanf("%d", &num);
   for(i=1; i<=num; i++)
   {
      if(num%i==0)
      {
         p++;
      }
   }
   if(p==2)
   {
      printf("Entered number is %d "\
             "and it is a prime number.",num);
   }
   else
   {
      printf("Entered number is %d "\
             "and it is not a prime number.",num);
   }
}

Example 2: prime factorization in c

#include <stdio.h>
#define MIN 100
#define MAX 100000


int main(){
    int pdiv=2,j;
    for (int num=MIN;num<=MAX;num++){
        printf("The prime factors of %d are:\n",num);
        j=num;
        do {
            
            if (j%pdiv==0)
            {
                
                printf("%d\n",pdiv);
                j=j/pdiv;
            }else
            {
               pdiv++; 
            }
            
            
        }while(j>1);
        pdiv=2;
        
    }



}