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Mod 10 Algorithm

PythonHardalgorithmslogicvalidation

Instructions

Create a function that takes a number and checks whethers the given number is a valid credit card number using Luhn Algorithm. The return value is boolean.

Examples

valid_credit_card(4111111111111111) ➞ True
# Visa Card

valid_credit_card(6451623895684318) ➞ False
# Not a valid credit card number.

valid_credit_card(6451623895684318) ➞ False

Notes

  • American Express/VISA/Discover/Diner Club may be the credit card type.
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Walks through the solution with reasoning and edge cases.