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Luhn algorithm
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==External links== * [https://rosettacode.org/wiki/Luhn_test_of_credit_card_numbers Luhn test of credit card numbers] on [[Rosetta Code]]: Luhn algorithm/formula implementation in 160 programming languages {{As of|1=2024|2=07|3=22|lc=y|url=https://rosettacode.org/w/index.php?title=Luhn_test_of_credit_card_numbers&action=history}} {{DEFAULTSORT:Luhn Algorithm}} [[Category:Modular arithmetic]] [[Category:Checksum algorithms]] [[Category:Error detection and correction]] [[Category:1954 introductions]] [[Category:Articles with example pseudocode]] [[Category:Management cybernetics]]
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