The winning Washington DC DC-4 numbers for August 6, 1991 were: single 7-8-0-4.
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 |
|---|---|---|---|---|
| Aug 6, 1991 | Single | 7-8-0-4 | 19 | 1 |
| Aug 5, 1991 | Single | 1-2-2-5 | 10 | 1 |
| Aug 3, 1991 | Single | 9-8-6-8 | 31 | 4 |
| Aug 1, 1991 | Single | 1-0-8-1 | 10 | 1 |