Mathematician:Christian Kramp

French mathematician working mainly with factorials.

His main claim to fame is for being the one to introduce the Factorial sign: $!$

Nationality
French

History

 * Born: July 8, 1760
 * Died: May 13, 1826

Theorems and Definitions

 * The Factorial sign: $!$

Books and Papers

 * 1801: Élémens d'arithmétique (2009 French edition: ISBN 1104161915)
 * 1808: Élémens d'arithmétique universelle (in which the Factorial sign was introduced)