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7 x 6 x 5 x 4 x 3 x 2 x 1
9!/6!, if the six different orders of any 3 digits are considered distinct combinations.
Oh, isn't that a happy little question! With 7 elements, you can create many arrays by arranging them in different orders. The number of different arrays you can make out of 7 elements is 5040. Just imagine all the beautiful possibilities waiting to be painted on your canvas of creativity!