Help me in solving PPSC88 problem

help
,
1

My issue

Coding problem - 4
The last challenge of the while loop.

Chef wants to write a code which checks if a given number is prime.

You are given a whole number N.
Your task is to determine if N is a prime number or not and print “Yes” if it is prime, or “No” if it is not.
Sample 1:
Input
Output
14635
No
Sample 2:
Input
Output
13
Yes

My code

#include <bits/stdc++.h>

using namespace std;

int main() {
    int n;
    cin >> n;
    if (n < 2) { // special cases
        cout << "No";
        return 0;
    }
    int i = 2;
    bool isPrime = 1;
    while (i < n) {
        // check if n is divisible by current number
        if ( i < n) {
            // if n is divisble by current number, set isPrime to false
            printf("No\n");
        }
        //update i
       return 0;
    }
    if (isPrime) {
        cout << endl;
    }
    else {
        cout << endl;
    }
}

Learning course: Programming and Problem solving using C
Problem Link: https://www.codechef.com/learn/course/ciet-programming-c/CIETPC21/problems/PPSC88