c++ program to find the prime number

#include <iostream> using namespace std; int main () { int number , count =0; cout<<"enter a number : "<<endl; cin>>number; for ( int i=1;i<=number ; i++ ) { if ( number % i == 0 ) { count++; } } if ( count == 2 ) { cout<<"the number : "<<number<<" is prime ."<<endl; } else { cout<<"the number : "<<number<<" is not prime ."<<endl; } }