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Developer Package Symbol

MachineIntegerQ

MachineIntegerQ[expr]
returns True if expr corresponds to a machine-sized integer, and False otherwise.

To use MachineIntegerQ, you first need to load the Developer Utilities Package using Needs["Developer`"].

On a typical computer, system machine-sized integers must lie in the range to or to .

Results from Mathematica are not affected by whether an integer is machine-sized or not; the speed of operations may, however, be affected.