Python's common integer type is the most common number type. On most 32-bit machines, the common integer types range from-2 * * 32 to 2 * * 32-1.

Python's long integer can only represent numerical values related to the (virtual) memory size supported by the machine. In other words, Python can easily express large integers.

Long integers are supersets of ordinary integers. When the program needs to use an integer larger than the ordinary integer, it can be used, and adding an L after the integer value indicates that it is a long integer. These two integer types are gradually unifying into one.

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