Verified Answer :

iGreen

It wants you to multiply the positive integers that come before it.

5! = 5 4 3 2 1
4! = 4 3 2 1

5!4! = 5 4 3 2 1 4 3 2 * 1 = 2880

konrad509

\(5!4!=1\cdot2\cdot3\cdot2\cdot4\cdot5\cdot1\cdot2\cdot3\cdot4=2880\)

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