Consumerist
-
blogs
How They Check To Make Sure Your Credit Card Number Is Right
We've all seen, "sorry, invalid credit card number"on the screen when ordering educational materials online, but how did they know? More »
- 1
1 of 1 for "Luhn algorithm"
luhn algorithm
New York, 5:56 AM
Wed Nov 11
22 posts in the last 24 hours
Tip Your Editors:
tips@consumerist.com
tipline: 347-42C-ON95
Co-Managing Editor:
Ben Popken
Email | AIM | Twitter
Co-Managing Editor:
Meghann Marco
Email | Twitter
Senior Editor:
Chris Walters
Email | Twitter
Weekend Editor:
Laura Northrup
Email | AIM | Twitter
Associate Editor:
Alex Chasick | Email
Associate Editor:
Phil Villarreal
Email
