Problem 8 Banks and credit card companies use a checksum algorithm known as the Luhn algorithm to verify credit card numbers and bank account numbers. Write a function that takes a credit card number (as a string) and returns True if it is a valid number and False if not. The algorithm is as follows: 1. Number the digits 0, 1, 2, ... 2. Keep track of the sum of all the even-indexed digits 3. The odd-indexed digits get passed to a function that multiplies the digit by 2 and then adds the digits. Ex. if 7 is the 3rd index, then we would really add 5 because 7 * 2 = 14 and 1+4 = 5. 4. After all the digits are added appropriately, valid bank accounts and credit cards will be evenly divisible by 10. Example IO: validate luhn ( '79927398713') #returns True validate luhn ( '79297398713') #returns False
Problem 8 Banks and credit card companies use a checksum algorithm known as the Luhn algorithm to verify credit card numbers and bank account numbers. Write a function that takes a credit card number (as a string) and returns True if it is a valid number and False if not. The algorithm is as follows: 1. Number the digits 0, 1, 2, ... 2. Keep track of the sum of all the even-indexed digits 3. The odd-indexed digits get passed to a function that multiplies the digit by 2 and then adds the digits. Ex. if 7 is the 3rd index, then we would really add 5 because 7 * 2 = 14 and 1+4 = 5. 4. After all the digits are added appropriately, valid bank accounts and credit cards will be evenly divisible by 10. Example IO: validate luhn ( '79927398713') #returns True validate luhn ( '79297398713') #returns False
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
python3
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education