returns True if expr corresponds to a machinesized integer, and False otherwise.


  • To use MachineIntegerQ, you first need to load the Developer Utilities Package using Needs["Developer`"].
  • On a typical computer, system machinesized integers must lie in the range to or to .
  • Results from the Wolfram Language are not affected by whether an integer is machinesized or not; the speed of operations may, however, be affected.