Recursively generates factorial of number : Recursive Function « Class Module « VB.Net Tutorial

1. VB.Net Tutorial
2. Class Module
3. Recursive Function

Public Class Tester
   Public Shared Sub Main
      Dim value As Integer = 12
      Dim i As Integer

      For i = 0 To value
         Console.WriteLine(i & "! = " & Factorial(i))
      Next

   End Sub 
      
   Shared Function  Factorial(ByVal number As Long) As Long

      If number <= 1 Then ' base case
         Return 1
      Else
         Return number * Factorial(number - 1)
      End If

   End Function ' Factorial

End Class

0! = 1
1! = 1
2! = 2
3! = 6
4! = 24
5! = 120
6! = 720
7! = 5040
8! = 40320
9! = 362880
10! = 3628800
11! = 39916800
12! = 479001600