Prime numbers (Bitwise AND)

#include <iostream>

int main() {
    int n[8] = {1, 2, 3, 5, 8, 10, 14, 127};
    for(int a=0; a!=8; a++) {
        if(n[a] & 1) {
            std::cout << "No" << std::endl;
        }
        else {
            std::cout << "Yes" << std::endl;
        }
    }

    return 0;
}