C++ Program to Check if Number is Prime or Not using For Loop
Write C++ Program to Check if Number is Prime or Not using For Loop
// CPP Program to Check if Number is Prime or Not using For Loop #include <iostream> using namespace std; int main() { int n; cout << "Enter the number :--> "; cin >> n; int i = 2, Count=0; for(; i < n; ) { if(n % i == 0) { Count++; break; } i++; } if(Count == 1) { cout << n << " is Not a Prime number"; } else { cout << n << " is a Prime number"; } return 0; }
Output:
Run 1:
Enter the number :--> 11
11 Prime a number
Run 2:
Enter the number :--> 65
65 is Not a Prime number