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created by

anonymous

36 seconds ago

​x
 
#include <iostream>
using namespace std;
​
int prime(int a);
​
int main(){
​
int number {};
​
cout << "Enter a number that you want to check if it is prime or not : " ;
cin >> number;
​
prime(number);
}
​
int prime(int a){
​
for (int i = 2; i < a ; i++)
{
    if (a%i == 0)
    {
            cout <<  a << " is not a prime number." << endl;
    }else
        {
            cout << a << " is a prime number." << endl;
        }
​
    return 0;  
}
}  

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$ g++ prog.cc -Wall -Wextra -std=c++11 -pedantic

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prog.cc: In function 'int prime(int)':
prog.cc:30:1: warning: control reaches end of non-void function [-Wreturn-type]
   30 | }
      | ^

Enter a number that you want to check if it is prime or not : 6 is not a prime number.

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