1. 1! = 1. 2! = 2. 3! = 6. 4! = 24. 5! = 120. 6! = 720. 7! = 5040. 8! = 40320. 9! = 362880. 10! = 3628800. 11! = 39916800. 12! = 479001600.
確定！ 回上一頁
