How do you simplify #6!#?
1 Answer
Nov 28, 2015
#6! = 720#
Explanation:
#6! = 6 xx 5 xx 4 xx 3 xx 2 xx 1 = 720#
You may find it helpful to memorise the first few factorials:
#1! = 1#
#2! = 2 * 1! = 2#
#3! = 3 * 2! = 6#
#4! = 4 * 3! = 24#
#5! = 5 * 4! = 120#
#6! = 6 * 5! = 720#
#7! = 7 * 6! = 5040#
#8! = 8 * 7! = 40320#
#9! = 9 * 8! = 362880#
#10! = 10 * 9! = 3628800#
