The winning Washington DC DC-3 numbers for August 15, 1991 were: single 0-7-7.
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 |
|---|---|---|---|---|
| Aug 15, 1991 | Single | 0-7-7 | 14 | 5 |
| Aug 14, 1991 | Single | 3-4-3 | 10 | 1 |
| Aug 13, 1991 | Single | 3-6-1 | 10 | 1 |
| Aug 12, 1991 | Single | 3-6-8 | 17 | 8 |
| Aug 10, 1991 | Single | 5-3-2 | 10 | 1 |
| Aug 9, 1991 | Single | 9-7-1 | 17 | 8 |