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https://issues.apache.org/jira/browse/VALIDATOR-272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niall Pemberton resolved VALIDATOR-272.
---------------------------------------

    Resolution: Invalid

The check digit on the number you supply is not valid. The credit card 
validator checks this

http://en.wikipedia.org/wiki/Luhn_algorithm

> CreditCardValidator returns false on validating Visa card which start with 
> 4530
> -------------------------------------------------------------------------------
>
>                 Key: VALIDATOR-272
>                 URL: https://issues.apache.org/jira/browse/VALIDATOR-272
>             Project: Commons Validator
>          Issue Type: Bug
>    Affects Versions: 1.3.1 Release
>         Environment: Java SDK 6
>            Reporter: Peter Miljanovic
>
> The credit card validation does not successfully validate Visa card numbers 
> beginning with 4530.
> CreditCardValidator ccv = new CreditCardValidator();
> if (ccv.isValid("4530424242424242")) {
>   // returns false
> }

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