Кратные числа

using System;

namespace multiples
{
    class Program
    {
        static void Main(string[] args)
        {
            int number;
            int minValue = 1;
            int maxValue = 28;
            int bottomBound = 100;
            int upperBound = 999;
            Random random = new Random();
            number = random.Next(minValue, maxValue);
            int multiplesCount = 0;
            int multiple = number;

            while (multiple < upperBound)
            {
                if(multiple >= bottomBound)
                    multiplesCount++;
                multiple += number;
            }

            Console.WriteLine($"Количество кратных N({number}) чисел в диапазоне {bottomBound} - {upperBound}: {multiplesCount}");
        }
    }
}