prime numbers program
#include<stdio.h> #include<conio.h> void main() { int a; clrscr(); printf("Enter a number which you want to check it is prime or not="); scanf("%d",&a); if(a%2==0 || a%3==0 || a%5==0) { printf("%d number is not prime"); } else { printf("its a prime number"); } getch(); }