What is the value of (n!) by formula? Prealgebra Fractions Understanding Fractions 1 Answer Shwetank Mauria Apr 28, 2016 Please see below. Explanation: #n# factorial is given by #n! =nxx(n-1)xx(n-2)xx........xx3xx2xx1# it can also be written as #n! = nxx(n-1)!# #1! =1# #2! =2xx1=2# #3! = 3xx2xx1=6# #4! = 4xx3xx2xx1=24# #5! =5xx4xx3xx2xx1=120# #6! =6xx5xx4xx3xx2xx1=720# and so on. Answer link Related questions What are the different types of fractions? How do you convert #0.004%# into a fraction? How do you write 2 7/8 as improper fraction? How do you write 6 7/8 as an improper fraction? How do you write 2 1/4 an improper fraction? Julie runs #3/7# miles everyday. How far will she run in #9# days? A restaurant uses #2 3/4# pounds of flour to make a batch of dinner rolls. About how many pounds... How do you simplify #3/4 times 5/12#? How do you write #7 3/5# as an improper fraction? What is 17% of 3,789? See all questions in Understanding Fractions Impact of this question 49268 views around the world You can reuse this answer Creative Commons License