Crack the Credit Card Code Fortran program

Credit cards. Nearly everybody has at least one. Its not wrong to say that credit cards are life line of worlds financial system.

But how many of you know what those numbers really mean? Contrary to what one may think, they aren’t random. Those 16 digits are there for a reason and, knowing a few simple rules, we can actually learn a lot about a credit card just from its number.

Head to this infographics to crack that code. And head over to to check the Fortran program to Validate any credit and debit card number.

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