Driver Program to test above function
int main ( ) { int n = 15 ; cout << " Following ▁ are ▁ the ▁ alternate " << " ▁ prime ▁ numbers ▁ smaller ▁ " << " ▁ than ▁ or ▁ equal ▁ to ▁ " << n << endl ; SieveOfEratosthenes ( n ) ; return 0 ; }