Sophie Germain was a French mathematician physicist and philosopher.
She was born on the 1 April 1776 at Paris and she died when she was 55 years old on the 27 June 1831 at Paris too .
Sophie Germain was the first and only woman who demonstrated Fermat’s Last Theorem or number theory.
WHAT SHE DID ???
There aren’t invalid integers x , and z such as : xn + yn = zn as soon as n is an integer strictly upper to 2.
In case n = 1, the equation xn + yn = zn corresponds to the usual addition.
In case n = 2, this equation has another infinity of not invalid solutions, the smallest of which is (3, 4, 5) : 32 + 42 = 52
See also Fermat’s Last Theorem