* Multiple Printings: "Blue-Eyes Ultimate Dragon" has been printed in numerous sets and booster packs over the years. Each printing has a different print run, and exact figures aren't publicly released.
* Different Languages: The card exists in multiple languages, each with its own production numbers.
* Reprints: Konami often reprints older cards in new sets, increasing the total number of cards in circulation.
Therefore, there's no official or definitive count of the number of "Blue-Eyes Ultimate Dragon" cards ever made.
However, it's safe to say that due to its popularity and frequent reprints, it's one of the most widely printed cards in Yu-Gi-Oh! history.