No, it cannot.
octgonal prism
pentagonal based prism
It is a triangular prism that has 6 vertices, 5 faces and 9 edges
octagonal prism
A heptagon is a 7-sided polygon, so a heptagonal prism is a 3D version of that (9 sides, 21 edges, 14 vertices).
octgonal prism
pentagonal based prism
triangular prism
square
A 3D cuboid prism, also known as a rectangular prism, has 8 vertices. This is because it has 6 faces (each face being a rectangle) and the vertices are the points where the edges meet. Each vertex is formed by the intersection of three edges.
It is a triangular prism that has 6 vertices, 9 edges and 5 faces.
An octagonal prism, possibly.
1. A cube & 2. A rectangular prism
A triangular prism.
If it is a an hexagonal prism then it will have 12 vertices
Triangular prism
Hexagonal prism