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  1. /*
  2.      Write a program to check if a given number is prime or not.
  3. */
  4.  
  5. #include <iostream>
  6. using namespace std;
  7.  
  8. int main()
  9. {
  10.     int n;
  11.     cout << "Enter a Number: ";
  12.     cin >> n;
  13.  
  14.     int i;
  15.     for (i = 2; i < n; i++)
  16.     {
  17.         if (n % i == 0)
  18.         {
  19.             cout << "Not a Prime" << endl;
  20.         }
  21.     }
  22.     if (i == n)
  23.     {
  24.         cout << "Prime Number!" << endl;
  25.     }
  26.     return 0;
  27. }
Success #stdin #stdout 0.01s 5312KB
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Enter a Number: Prime Number!
https://ideone.com/o80KdQ
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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