# [SOLVED] credit card combinations problem

• February 23rd 2009, 02:20 PM
mandy123
[SOLVED] credit card combinations problem
with a credit card the first six digits that appear on the card are to identify the issuer. How many issuers are there given each digit 0-9 can be used more than once.

this problem has slipped my mind, I know it sounds easy, but forgot how to do these types of problems, can someone please help(Headbang)
• February 23rd 2009, 05:22 PM
mr fantastic
Quote:

Originally Posted by mandy123
with a credit card the first six digits that appear on the card are to identify the issuer. How many issuers are there given each digit 0-9 can be used more than once.

this problem has slipped my mind, I know it sounds easy, but forgot how to do these types of problems, can someone please help(Headbang)

$10^6$ assuming 000000 is a legitimate string of digits.