Mathematician:Charles de la Vallée Poussin

Mathematician
Belgian mathematician famous for proving the Prime Number Theorem, independently of in $1896$.

Nationality
Belgian

History

 * Born: August 14, 1866
 * Died: March 2, 1962

Theorems

 * Prime Number Theorem

Also known as
Full name: Charles-Jean Étienne Gustave Nicolas, Baron de la Vallée Poussin.

Some sources hyphenate variously, for example: Charles-Jean de la Vallée-Poussin.

Variants on the capitalisation of the small words can be seen, for example: Charles-Jean De La Vallée-Poussin