Worlds of David Darling
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The standard deck of 52 cards can be ordered in 52! (see factorial), or 8.065817517094 1067 ways. There are various ways to shuffle cards in order to randomize them or to perform tricks with them.

Each of the four kings in a deck represents a great leader from history: Charlemagne (hearts), Alexander the Great (clubs), Julius Caesar (diamonds), King David (spades). The king of hearts is the only one without a moustache.

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