# Talk:Cyclic module

Active discussions
WikiProject Mathematics (Rated Start-class, Mid-priority)
Good question! It looks a bit like P. M. Cohn type stuff, doesn't it? Actually, I don't think that this largest integer always exists; consider the ring ${\displaystyle R\simeq R^{4}}$  in Invariant basis number#Examples. JoergenB (talk) 18:08, 24 September 2008 (UTC)