I know there's a polyhedron named a disdyakis triacontahedron, it has 120 faces and they're all the same. Could there be a polyhedron with a larger number of faces? Can it be arbitrarily large?
2026-03-28 20:09:35.1774728575
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What's the maximum number of faces a convex polyhedron can have, given that it's polyhedron with all the same faces?
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For the non-rotational isohedra, 120 is the upper limit. But as I answered here and showed in Some Polyhedra with Identical Triangular Faces, it's possible to combine antiprisms and pyramids.

The wikipedia article for the disdyakis triacontahedron mentions that it is has the largest number of sides for any strictly convex polyhedron where all sides are congruent -- except for bipyramids and trapezohedra, which are two infinite families of polyhedra with this property. I think they must mean that the polyhedra need to be face-transitive, because, otherwise there's also the sandwich antiprism-bipyramid family shown by Ed Pegg.