The winning Washington DC DC-4 numbers for February 23, 1989 were: single 6-5-5-7.
Sum is the digits added together (5+5+0 = 10). Root sum keeps adding until one digit is left (10 → 1+0 = 1) — many regular players track it in their notebooks. Odd/Even marks each digit O or E (5-5-0 = OOE). High/Low marks 0–4 as L and 5–9 as H (5-5-0 = HHL).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| Feb 23, 1989 | Single | 6-5-5-7 | 23 | 5 |
| Feb 21, 1989 | Single | 6-4-7-2 | 19 | 1 |
| Feb 18, 1989 | Single | 7-5-1-0 | 13 | 4 |
| Feb 17, 1989 | Single | 0-9-1-6 | 16 | 7 |