Project Euler Solution using C#: Problem 5: Smallest Multiple

Problem:

2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.
What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?
My Solution:

       static void Main(string[] args)
        {
            int num = 1;
            bool isDivisiblyByAll = false;
            bool isFound = false;
            while (isFound == false)
            {
                for (int i = 1; i <= 20; i++)
                {
                    if (num % i == 0)
                    {
                        isDivisiblyByAll = true;
                    }
                    else
                    {
                        isDivisiblyByAll = false;
                        break;
                    }
                }
                if (isDivisiblyByAll)
                {
                    isFound = true;
                    Console.WriteLine("Smallest positive number that is evenly divisible by all of the numbers from 1 to 20 is : " + num);
                }
                num++;
            }
            Console.ReadLine();
        }

Note: You can simplifies the coding :)