The winning Washington DC DC-4 numbers for October 3, 1990 were: single 5-2-1-4.
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 |
|---|---|---|---|---|
| Oct 3, 1990 | Single | 5-2-1-4 | 12 | 3 |
| Oct 1, 1990 | Single | 1-1-9-0 | 11 | 2 |
| Sep 29, 1990 | Single | 0-6-8-3 | 17 | 8 |
| Sep 27, 1990 | Single | 4-0-1-9 | 14 | 5 |