No! Though this depends on definition. Usually we define n! = n(n-1)....3.2.1, which is only sensible when n is a whole number. However, we can also define n! = int(0, infinity, xne-x, x) (the integral of xne-xdx from 0 to infinity) This actually gives us all the same results as the usual definition, but also allows us to calculate for non-integer values of n. For example 1.5! = 1.3293... 6.7! = 2769.83036... -0.8! = 4.5908... 0! = 1 Interestingly with this definition, all negative whole numbers have an undefined (infinite) factorial value.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --XNE--. That is, seven letter words with 3rd letter X and 4th letter N and 5th letter E. In alphabetical order, they are: laxness
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern L-XNE--. That is, seven letter words with 1st letter L and 3rd letter X and 4th letter N and 5th letter E. In alphabetical order, they are: laxness