PROJECT EULER #5

Link to Project Euler problem 5

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 number that is evenly divisible by all of the numbers from 1 to 20?

It's enought to test for 20 down to 11 as this automatically includes the rest.

using System;

namespace ProjectEuler
{
   class Program
   {
       static void Main(string[] args)
       {
           //Problem 5
           DateTime start = DateTime.Now;
           bool test = false;
           int i=0;
           do
           {
               i++;
               test = i%20 == 0 && i%19 == 0 && i%18 == 0 && i%17 == 0 && i%16 == 0 &&
                   i%15 == 0 && i%14 == 0 && i%13 == 0 && i%12 == 0 && i%11 == 0
                          ? true
                          : false;
           } while (!test);
           TimeSpan time = DateTime.Now-start;
           Console.WriteLine("{0}\nThis took {1}",i ,time);
           Console.ReadKey();
       }
   }
}0