#include<stdio.h>
#include<conio.h>

main()
{
	int i,n,j = 1;
	char response[4];
	clrscr();
	printf("\nThis program will tell weather a number is prime or not");
	printf("\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");

       do
       {
	do
	{
		printf("\nEnter a positive integer:");
		scanf("%d",&n);
	}
	while(n <= 0);

	if(n == 1)
	printf("\n%d isn\'t a prime number",n);

	else
	{
		for(i = 2;i < (n/2);i++)
		{
			if(n%i == 0)
			{
				j = 0;
				break;
			}
		}
		if(j)
		printf("\n%d is prime",n);
		else
		printf("\n%d isn\'t prime",n);
	}
	printf("\nAnother time (y/n):");
	scanf("%3s",response);
       }
       while(response[0] == 'y' || response[0] == 'Y');
	printf("\Hit any key to continue...");
	getch();
	print_rajesh();
	return(0);
}

/*************************************************************************************/
/* A C Function to print rajesh in a stylish way can (should) be used in any cprogram*/
/*************************************************************************************/

print_rajesh()
{
	clrscr();
	printf("\nThis program made by :");
	printf("\n\n\n\n\n\007");
	printf(",##########.                   ,####.                          ,####.\n");
	printf(":#############.                `####;                          :####.\n");
	printf(":#####. :#####.                                                :####.\n");
	printf(":#############;   `#########.  ,####.  ,#######.    ,########. :###########.\n");
	printf(":############;          :####. :####. ,###. :###.  ,####.  :#. :###########.\n");
	printf(":##########.       :#########. :####.,####. :####.`##########. :####. :####.\n");
	printf(":###########.   ,############. :####.:###########;  `#########.:####. :####.\n");
	printf(":############.  :#####. :####. :####.`#####.            :#####;:####. :####.\n");
	printf(":#####. `######  ############. :####. `#########.  ,#########; :####. :####.\n");
	printf("`#####;  `######; `##########; :####.     `#####;  `#######;   `####; `####;\n");
	printf("                              #####");
	printf("\n\n\n\tRajesh _ThE gReAt in 2k.....\n\n\n\t\t\tHit any key to continue.....");
	getch();
}