number of faces edges and vertices of a pentagonal prism
Pentagonal prism In geometry, the pentagonal prism is a prism with a pentagonal base. It is a type of heptahedron with 7 faces, 15 edges, and 10 vertices.
Optimal solutions for Rubik's Cube The maximum number of face turns needed to solve any instance of the Rubik's Cube is 20,[2] and the maximum number of quarter turns is 26.[3] These numbers are also the diameters of the corresponding Cayley graphs of the Rubik's Cube group. In STM (slice turn metric) it's unknown.