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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main(){
  5. int n, i, s;
  6. cout << "Enter a number = ";
  7. cin >> n;
  8.  
  9. for (int i = 2; i <= n-1; i++)
  10. {
  11. s = n%i;
  12. if (s == 0)
  13. {
  14. cout << n << " : This Number is not a Prime Number!!" << endl;
  15. break;
  16. }
  17. if (s != 0)
  18. {
  19. cout << n <<" : This Number is a Prime Number!!"<<endl;
  20. }
  21. }
  22. return 0;
  23. }
Success #stdin #stdout 0.01s 5316KB
stdin
13
stdout
Enter a number = 13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!
13 : This Number is a Prime Number!!