Question : Write a C Program to check whether a number is prime or not.

Question :  Write a C Program to check whether a number is prime or not.

/*

Write a C Program to check whether a number is prime or not.

*/

#include <stdio.h>

main()

{

            int n, i, c = 0;

            printf("Enter any number n:");

            scanf("%d", &n);

             /*logic*/ 

            for (i = 1; i <= n; i++)

            {

                        if (n % i == 0)

                        {

                        c++;

                        }

            }

             if (c == 2)

            {

                        printf("n is a Prime number");

            }

            else

            {

                        printf("n is not a Prime number");

            }

return (0);

}

OUTPUT :

Enter any number n: 7

n is Prime number

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