Mathematician:Maurice Kraitchik

Belgian mathematician and writer who wrote on number theory and recreational mathematics.

Proved in 1922 that the Mersenne number $M_{257}$ is composite, contrary to the claims of Marin Mersenne.

Nationality
Belgian

History

 * Born: 1882
 * Died: 1957

Books, Publications, etc.

 * 1922: Théorie des Nombres
 * 1924: Recherches sur la Théorie des Nombres
 * 1930: La Mathématique des Jeux ou Récréations Mathématiques
 * 1944: Alignment Charts