Question 448404
100! = 100*99*98*...*1. You could also express it using product notation:


*[tex \LARGE 100! = \prod_{i=1}^{100} i]


Or as a recursive sequence, where *[tex a_1 = 1] and *[tex a_{n+1} = (n+1)a_n]. 100! is simply *[tex a_100].