Main Page | See live article | Alphabetical index This page has been listed on Wikipedia:Votes for deletion. Please see that page for justifications and discussion. 3628800 is the factorial of 10, i.e., it is 10!. It is mentioned in the book Foucault's Pendulum by Umberto Eco. Like all factorials (except 2!), it is not a prime number. Prime factors: 2, 3, 5, and 7 Factors: 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 400, 907, 1814, 3628, 4535, 7256, 9070, 18140, 22675, 36280, 45350, 90700, and 181400. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.