588.
The declension of τρεῖς, τρία, three, is as follows:
| m,f | n | |
| N | τρεῖς | τρία |
| G | τριῶν | τριῶν |
| D | τρισί(ν) | τρισί(ν) |
| A | τρεῖς | τρία |
The declension of τέσσαρες, τέσσαρα, four, is as follows:
| m,f | n | |
| N | τέσσαρες | τέσσαρα |
| G | τεσσάρων | τεσσάρων |
| D | τέσσαρσι(ν) | τέσσαρσι(ν) |
| A | τέσσαρας | τέσσαρα |