touchback - (American football) a play in which the opposing team has kicked the football into your end zone.
From Wikipedia, the free encyclopedia. A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. It is analogous to a binary parity bit used to check for errors in computer-generated data.
How to find a routing number on a check. On checks, bank routing numbers are a multi digit key that comes right before your bank account number. Both numbers are listed on the bottom left corner of the check. Both the routing number and account number are used to withdraw money from your account. Do not share your account number with others unless you trust the connection they make with your Wells Fargo Bank account.