C Ask the user for a number between 3 and 100 inclusive Usin

C++

Ask the user for a number between 3 and 100 (inclusive). Using a loop, determine if the number is prime; that is, check to see if it is evenly divisible by any number other than itself. For example:

Solution

#include <iostream>
using namespace std;

int main()
{
int n, i;
bool flag = true;

cout << \"Enter a positive integer between 3 and 100: \";
cin >> n;
if(n<3 || n>100)
{
cout<<\"Invalid Number . please enter number between 3 and 100\";
}
for(i = 2; i <= n / 2; ++i)
{
if(n % i == 0)
{
flag = false;
break;
}
}
if (flag)
cout << \"This is a prime number\";
else
cout << \"This is not a prime number\";

return 0;
}