the are only four
An American Express credit card has 15 numbers.
An American Express credit card has 15 numbers.
There are 16 digits on a credit card.
16
16 digits.
The typical card has 16 numbers American Express has 15.
16 digits
16 numbers.
Most cases it is three, and they are the last numbers on the back of your card.
3
16 numbers
Credit card ID numbers have three (Discover, Visa, MasterCard) or four (American Express) digits.