What comes next in this series?
0, 1, 2, 720!, ?
In math, the exclamation mark is a factorial, which is the product of every whole number from 1 to n.
For example, five factorial is written 5! = 1x2x3x4x5 = 120. By definition 0! = 1.
So 720! = 1x2x3x4x...718x719x720, which is a very large number.
