Answer
$$362880$$
Work Step by Step
$$\eqalign{
& 9! \cr
& {\text{Write as a product}} \cr
& 9! = 1 \cdot 2 \cdot 3 \cdot 4 \cdot 5 \cdot 6 \cdot 7 \cdot 8 \cdot 9 \cr
& {\text{Multiplying}} \cr
& 9! = 120 \cdot 6 \cdot 7 \cdot 8 \cdot 9 \cr
& 9! = 40320 \cdot 9 \cr
& 9! = 362880 \cr} $$
