ISBN13 check digit: Difference between revisions
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{{task}}
The task is to validate the check digit of an ISBN-13 code. Use some good and bad codes of your choosing for testing. See https://isbn-information.com/the-13-digit-isbn.html for details on the method of validation.▼
;Task:
Validate the check digit of an ISBN-13 code. Use some good and bad codes of your choosing for testing.
;See also:
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