A rectangular prism has 8 vertices/corners.
A rectangular prism has 8 vertices (corners), 6 faces.
There are 12 edges and 8 corners in a rectangular prism
One possible pair is a cube and a parallelepiped. Vertices and corners are the same thing!
They have 16 corners.
A rectangular prism (or cuboid) has 8 corners.
8 corners and 12 edges.