Number Theory in Teaching Mathematical Journals: the Case of Nouvelles Annales de Mathématiques (1842-1927)

International audienceThe Nouvelles annales de mathématiques are a French mathematical journal, published between 1842 and 1927, for candidates to polytechnic and normal schools, then to licence and agrégation applicants. In this paper, we will rely on a systematic analysis of number theory content-a mathematical field that is virtually absent from French education programs during the period under consideration herein the Nouvelles annales. Our goal is twofold: we will show what forms takes number theory through this specific media, and we will see how a teaching mathematical journal as the Nouvelles annales de mathématiques operates through the arithmetic focal. For this, we will rely on the actors involved (editors, authors, readers), on the various forms of texts published, on the thematic studied as well as the arithmetical practices and discourse mobilized