Prokaryotic cell
Prokaryotic cell such as a bacterial cell is simple in organization. It does not have a well-organised nucleus. DNA length and complexity is very less. Binary fission usually occurs in them. Therefore, it takes less time to divide.
Eukaryotic cell
Eukaryotic cell has a well-defined nuclear membrane and other cell organelles. DNA length and complexity is greater in eukaryotic cells.
For cell division to occur, there is a need for dissolution of the nuclear membrane and duplication of some cell organelles. Therefore, an eukaryotic cell takes more time than a prokaryotic cell to divide.
Final answer: Prokaryotic cell.