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  1. // Online C++ compiler to run C++ program online
  2. #include <iostream>
  3. #include<math.h>
  4. using namespace std;
  5. int main() {
  6.    int n,f=1;
  7.    cin>>n;
  8.  
  9.    for(int i=2;i<sqrt(n);i++){
  10.        if(n%i==0)
  11.        f=0;
  12.        break;
  13.    }
  14.    if(f==1){
  15.        cout<<"n is prime"<<endl;
  16.        cout<<sqrt(n);
  17.    }
  18.    else {
  19.        cout<<"not Prime ";
  20.    }
  21.  
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0.01s 5316KB
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stdin
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stdout
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n is prime
6.7082
https://ideone.com/AdfGTO
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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