Whether a given number is prime or not
#include<stdio.h> void main() { int n,i=2; printf("\nEnter a number \n"); scanf("%d",&n); for(i=2;i<=n-1;i++) { if(n%i==0) { printf("%d isn't prime...!\n",n); break; } } if(i==n) printf("%d is prime...!\n",n); } Output Video Class : Prastheena Learning Class