When1: 1816
When2: 1820
Who: Sophia Germain [Germain, Sophia] or Sophie Germain [Germain, Sophie]
What: mathematician
Where: France
Detail: She lived 1776 to 1831 and studied number theory and elasticity [1816]. For integers x, y, and z, if x^5 + y^5 = z^5, then x, y, or z must be divisible by 5 [1820] {Germain's theorem}.
Mathematical Sciences>Mathematics>History>Number Theory
3-Mathematics-History-Number Theory
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224