Zip codes in the US consist of 5 numbers. How many zip codes are possible if there are no restrictions on which the numbers can be used?

asked Dec 17, 2020 158k views

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by Kwick

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This means 100000 possible zip codes if repeatable. 540 * 56 = 30240 zip codes without any repetitions.

Jinyu answered Dec 21, 2020

by Jinyu

5.2k points

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