Write a program to input two number and check whether its is twin prime number or not? Explanation :

Q1.  Write a program to input two number and check whether its is twin prime number or not?

Explanation :

Solution :

/*   ################################

     Girfa Student Help

     Twisted Prime number

     for more visit : http://girfahelp.blogspot.in/p/c-language-assignment.html

     ################################

*/

#include<stdio.h>

#include<conio.h>

void main()

{

     int n1,n2,b;

     clrscr();

     printf("Enter Two Number>> ");

     scanf("%d%d",&n1,&n2);

     if(n2-n1==2)

     {

           /* checking n1 and n2 that prime or not */

           for(b=2;b<n1;b++)

           {

                if(n1%b==0)

                     break;

           }

           if(b==n1)

           {

                for(b=2;b<n2;b++)

                {

                     if(n2%b==0)

                           break;

                }

                if(b==n2)

                     printf("\n\tGiven numbers are twisted  Prime");

                else

                     printf("Number is not Twisted Prime");

           }

           else

                printf("\nNumber is not Twisted Prime");

     }

     else

           printf("Input is not Twist Prime Number");

     getch();

}

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