# Program to check whether given Integer is Prime or Not

Sample Input 1:

11

Sample Output 1 :

11 is a Prime Number

Sample Input 2 :

12

Sample Output 2 :

12 isnot a Prime Number

#### Program or Solution

` ````
#include <stdio.h>
int main()
{
int number, i;
printf("Enter a Number: ");
scanf("%d",&number);
for(i=2; i<=number/2; ++i)
{
if(number%i==0)
{
printf("%d is not a prime number.",number);
return 0;
}
}
printf("%d is a prime number.",number);
return 0;
}
```

#### Program Explanation

refer video tutorial