SOLUTION: Determine whether the given credit card number is valid number. 1. 5591-4912-7644-1105

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Question 1158648: Determine whether the given credit card number is valid number.
1. 5591-4912-7644-1105
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
https://www.fivecentnickel.com/how-do-you-know-if-a-credit-card-number-is-valid/