  A Cantor minimal system is of finite topological rank if it has a
Bratteli-Vershik representation whose number of vertices per level is uniformly
bounded. We prove that if the topological rank of a minimal dynamical system on
a Cantor set is finite then all its minimal Cantor factors have finite
topological rank as well. This gives an affirmative answer to a question posed
by Donoso, Durand, Maass, and Petite.
