// A program that manually lists all the prime numbers upto specified max #include using namespace std; bool prime(int input, int max) { // return true; int result; // int n = 2; // while(n < input) { // result = input % n; // if (result = 0) { return false; } // ++n; // } if (n = input ) { return true; } //if 3 = 3 give true. } int main() { int max; // In example: = 14 cout << "Enter max: "; cin >> max; int input = 3; cout << "2 is prime\n"; while (input < max + 1) { // while 3 < 15 bool end = prime(input, max); // prime ( 3, 14) if (end = false) { cout << input <<" is not prime\n"; } else { cout << input << " is prime\n";} ++input; } system("PAUSE"); }