10. Write a program to check whether the given number is Prime or not.

#include<stdio.h>

#include<conio.h>

void main()

{

    int i,no,prime=0;

    clrscr();

    printf("enter number: ");

    scanf("%d",&no);

    for(i=1; i<=no; i++)

    {

        if(no %i == 0)

        {

            prime++;

        }

    }

    if(prime == 2)

    {

        printf("\n\n%d is a prime number",no);

    }

    else

    {

        printf("\n\n%d is not a prime number",no);

    }

    getch();

}

/*      output:

enter number: 59

59 is a prime number

*/