Check out example codes for "c# number suffixes". It will help you in understanding the concepts better.

Code Example 1

using System.IO;
using System;

public class Program {
   public static void Main() {
      // long suffix
      long val1 = 29345L;
      Console.WriteLine(val1);
        
      // decimal suffix
      decimal val5 = 3245.5678M;
      Console.WriteLine(val5);

      // double suffix
      double val2 = 297.325D;
      Console.WriteLine(val2);

      // float suffix
      float val3 = 250.35F;
      Console.WriteLine(val3);

      // unsigned suffix
      uint val4 = 3456U;
      Console.WriteLine(val4);
   }
}

//can work in upper or lower case, but stylistically uppercase 
//literals are tradition and preferred.

Learn ReactJs, React Native from akashmittal.com