C language: Program for first N prime numbers and to check if a number is prime or not

Prime number programs bugs new programmers too much in thinking how to find the logic of finding the first n prime numbers, nth prime number , or in checking if a number is prime or not

So here are the programs for checking if a number is prime or not and finding the first n prime numbers

Program for finding if a number is prime or not 

#include<stdio.h>

main()
{
 int n, c = 2;

 printf("Enter a number to check if it is prime\n");
 scanf("%d",&n);

 for ( c = 2 ; c <= n - 1 ; c++ )
 {
 if ( n%c == 0 )
 {
 printf("%d is not prime.\n", n);
 break;
 }
 }
 if ( c == n )
 printf("%d is prime.\n", n);

 return 0;
}

Program for finding first n Prime numbers 

#include<stdio.h>

int main()
{
 int n, i = 3, count, c;

 printf("Enter the number of prime numbers required\n");
 scanf("%d",&n);

 if ( n >= 1 )
 {
 printf("First %d prime numbers are :\n",n);
 printf("2\n");
 }

 for ( count = 2 ; count <= n ; )
 {
 for ( c = 2 ; c <= i - 1 ; c++ )
 {
 if ( i%c == 0 )
 break;
 }
 if ( c == i )
 {
 printf("%d\n",i);
 count++;
 }
 i++;
 }

 return 0;
}