Help for this page
#Simple program to check validity of 16 digit credit card numbers
Invalid Input: x.
16 digit cards only for now (41245678912345).
Card Number: 4124567891234560
Throwing nuclear weapons into the sun
Making everybody on Earth disappear
A threat from an alien with a mighty robot
A new technology or communications medium
Providing a magic fish to a Miss Universe
Establishing a Group mind
Results (174 votes). Check out past polls.