Imports System Imports System.Globalization Class NumberFormatInfoSample Public Shared Sub Main() Dim nfi As NumberFormatInfo = New CultureInfo("en-US", False).NumberFormat Dim myInt As Int64 = 123456789 Console.WriteLine(myInt.ToString("N", nfi)) nfi.NumberGroupSeparator = " " Console.WriteLine(myInt.ToString("N", nfi)) End Sub End Class