dividing a cube in four parts

hi, i have a default cube, i want to subdivide it in four parts, in edit mode I used “subdivide option” and it works but when I went in “object mode” the cube looks like one single, my question is:

  1. how can the cube looks subdivide in four parts in object mode?

regards

Just a hunch, I’m pretty new to blender. But if I’m correct then the subdivision on blender is a modifier. It affects the mesh but does not apply it to the mesh.

In other words, the subdivision is a new layer on top of the mesh, it does not affect the mesh directly

so, what is the right way to apply the subdivide to the mesh?