title: Largest data type to store numbers
body: <p>I am making a scientific calculator in C# Winform application. In that I am using double to store the answers retrieved from the calculation of function e^x. But datatype double is having some limit if it exceeds then it show the overflow related error. So can you tell me what is the largest data type to store numbers in C#. </p>
  
  <p>Example: 100!</p>