In question it is mentioned that we are going to take input hence we will use** cin **variable

after that we have to check the entered number is prime or not therefore we know that 2 is a prime number and the numbers which are not divided by any other number except 1 is prime

We will create a loop using for loop to check the number divisibility by previous all number using i++

```
for (i = 1; i <= number; i++){
if (number % i == 0)
{
c++;
} }
```

complete code ::

#include <iostream>
using namespace std;
int main()
{
int number, i, c = 0;
cout << "Enter any number number: "; cin>>number;
for (i = 1; i <= number; i++)
{
if (number % i == 0)
{
c++;
}
}
if (c == 2)
{
cout <<number<<"- is a Prime number" << endl;
}
else
{
cout <<number<<" - is not a Prime number" << endl;
}
return 0;
}

First declare header tags iostream

we used int main as we are doing operations with integers , initialize values and variables