c method of finding the maximum of two Numbers

1, 3 operators:

class Program
    {
        static void Main(string[] args)
        {
          int max= NumMAX(10,15);
            Console.WriteLine(" Most of large Numbers: {0}",max);
            Console.ReadKey();
        }
   /// <summary>
        ///  The largest of two Numbers 
        /// </summary>
        /// <param name="p1"></param>
        /// <param name="p2"></param>
        /// <returns></returns>
        private static int NumMAX(int p1, int p2)
        {
           return p1 > p2 ? p1 : p2;
        }
}

2. if condition judgment:

class Program
    {
        static void Main(string[] args)
        {
          int max= NumMAX(10,15);
            Console.WriteLine(" Most of large Numbers: {0}",max);
            Console.ReadKey();
        }
   /// <summary>
        ///  The largest of two Numbers 
        /// </summary>
        /// <param name="p1"></param>
        /// <param name="p2"></param>
        /// <returns></returns>
        private static int NumMAX(int p1, int p2)
        {
              if (p1>p2)
            {
                return p1;
            }
            return p2;
        }
}

3. Math function:

class Program
    {
        static void Main(string[] args)
        {
          int max= NumMAX(10,15);
            Console.WriteLine(" Most of large Numbers: {0}",max);
            Console.ReadKey();
        }
   /// <summary>
        ///  The largest of two Numbers 
        /// </summary>
        /// <param name="p1"></param>
        /// <param name="p2"></param>
        /// <returns></returns>
        private static int NumMAX(int p1, int p2)
        {
           return Math.Max(p1, p2);
        }
}