How Does a Credit Card Number Work?
“This is financial adviser, Patrick Munro, talking about how does a credit card number work? Credit cards have grown in complexity over the years and each credit card has its own series of numbers normally running in 16 digits. These credit card numbers are designed to be your unique identifier when you actually use credit and it has grown now to a point where it has an expiring date as well so it is important to make sure the credit card expiring date is included in the transaction as well as the credit card number. Moreover on the back of the credit card there is a security code that ranges from three to four digits that is a further identifier to make sure it is really you in the transaction.
