I don't see why you would expect Benford's Law to apply here. Credit card numbers have various rules they have to follow - https://secure.wikimedia.org/wikipedi

I don't see why you would expect Benford's Law to apply here. Credit card numbers have various rules they have to follow - https://secure.wikimedia.org/wikipedia/en/wiki/Credit_card_number https://secure.wikimedia.org/wikipedia/en/wiki/Credit_card_n... - that will skew the results.