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Is the following UPC valid or invalid 4-63291-48231-4 ?

Invalid; d = 1
Valid
Invalid; d = 9
Invalid; d = 3

Is the following UPC valid or invalid 4-63291-48231-4 ? Invalid; d = 1 Valid Invalid-example-1
User Moin Zaman
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1 Answer

8 votes
invalid d = 3 will be your answer
User Rmwenz
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