Credit card ID numbers have three (Discover, Visa, MasterCard) or four (American Express) digits.
15
There are 16 numbers on a mastercard credit card
16
16 digits.
16 digits
The typical card has 16 numbers American Express has 15.
16 numbers.
16 numbers
3
Hi its 16 digits in most of the cards, except AMEX & certain International cards with 15 digits.
Most cases it is three, and they are the last numbers on the back of your card.
16 digits in a credit card number and 3 for the security code on the back of the card.