CODE EXAMPLE FOR C

prime numbers c

#include<stdio.h>
void main()
{
    int num;
    int prime = 1;
    printf("Enter a number = ");
    scanf("%d",&num);


    for(int i = 2; i < num; i++)
    {
        if(num % i == 0)
        {
            prime = 0;
            break;
        }
    }
    if(prime == 1 && num>0 && num !=1)
        printf("%d is a prime number.", num);
    else
        printf("%d isn't a prime number.", num);
    
}