Partial Credit: Exploring Luhn's Algorithm

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Partial Credit: Exploring Luhn's Algorithm

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Summary

Ever wonder how a website knows your credit card number is "invalid" before you even hit the submit button? In this commando-style holiday episode, Pete and Noah dive into the secrets of Luhn's Algorithm, a clever approach that uses simple arithmetic to validate sequences of digits.

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Questions Answered in the Episode:
• How does the Luhn algorithm work to validate credit card numbers?
• Why do credit card companies use a checksum digit?

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