The winning Washington DC DC-4 numbers for August 6, 1990 were: single 3-9-7-7.
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 6, 1990 | Single | 3-9-7-7 | 26 | 8 |
| Aug 3, 1990 | Single | 8-5-9-6 | 28 | 1 |
| Aug 2, 1990 | Single | 3-5-0-2 | 10 | 1 |
| Aug 1, 1990 | Single | 1-2-9-9 | 21 | 3 |
| Jul 31, 1990 | Single | 6-6-4-3 | 19 | 1 |