// Prompt user input
cout << “Please enter a number for the primeness number test: “;
cin >> n;
// Test for prime-ness by checking for divisibility
// by all whole numbers from 2 to sqrt(n)
i = 2;
while(i <= sqrt(static_cast<double>(n))){
if(n % i == 0){
prime = false;
}
i++
}
if(prime){
cout << “The number is prime.” << endl;
}else{
cout << “The number is not prime.”;
}
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