Which credit card number is valid?     5412 7555 3408 2614     5412 7555 3408 2615     5412 7555 3408 2616     5412 7555 3408 2617

FINANCIAL ACCOUNTING
10th Edition
ISBN:9781259964947
Author:Libby
Publisher:Libby
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
Problem 1Q
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Question

Which credit card number is valid?

   

5412 7555 3408 2614

   

5412 7555 3408 2615

   

5412 7555 3408 2616

   

5412 7555 3408 2617

Expert Solution
Step 1

Validation of Credit Card Number

About double value of each additional digit, starting with the next-to-last digit, in the specified credit card number. The additional characters with in credit card number should be added to the result of Step 1's calculations. The number is correct if the value modulo 10 equals 0.

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