Prime
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#include <iostream>
using namespace std;
int isPrime(int num)
{
int div = 2;
while(div < num)
{
if((num%div)==0)
{
return -1;
}
else
div++;
}
return 0;
}
int main() {
int number;
cout << "Please enter number"<<endl;;
cin >> number;
if(isPrime(number))
cout<<"The number "<< number<<" is not prime"<< endl;
else
cout<<"The number "<< number<<" is prime"<< endl;
return 0;
}
Cpp
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