Codeblocks and logical operators

Hey all, I am writing a program that computes prime numbers. I get the following error message when I try to build.

|24|error: expected identifier before '(' token|

I've tried the other logical operators (||, !) but they generate the same error. If I delete the logical operator and the 2nd part of the condition the code works perfectly fine. Please note I know that my algorithm is probably flawed but I want to figure those flaws out myself so please do not correct my algorithm.

Code:

#include <iostream>
#include "LargeNumber.h"
#include <stdexcept>

using namespace std;

int value;
int a_prime_number;
int divider;
int analyzer;
int stop_value;
int main()

{
    cout << "What number would you like to start with?(Must be greater than 1)\n";
    cin >> value;
    cout << "What number would you like to stop at?(must be larger than start value)\n";
    cin >> stop_value;
    cout << "Starting calculations, this will take a while\n";
    while ( value < stop_value )
    {
        divider = 2;
        analyzer = value % divider;
        if (0 == analyzer) && (value <= divider)
        {
            cout << "## Debug message1\n";
            ++value;
        }
        else if ( value <= divider )
        {
            cout << "## Debug message2\n";
            a_prime_number = value;
            cout << a_prime_number << "\n";
        }
        {
            cout << "## Debug message4\n";
            ++divider;
        }
    }
cout << "Done\n";
cin.ignore(numeric_limits<streamsize>::max(), '\n');
cin.get();
}

Thanks in advance for any help

> if (0 == analyzer) && (value <= divider)
Needs ( ) around the whole thing.

It's
if ( condition )

And technically doesn't need brackets around subexpressions since operator == has higher precedence than && anyway (though you may use them for clarity).