The winning Washington DC DC-3 numbers for May 22, 1991 were: single 8-4-1.
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 |
|---|---|---|---|---|
| May 22, 1991 | Single | 8-4-1 | 13 | 4 |
| May 21, 1991 | Single | 3-5-3 | 11 | 2 |
| May 20, 1991 | Single | 5-4-8 | 17 | 8 |
| May 18, 1991 | Single | 9-2-5 | 16 | 7 |
| May 17, 1991 | Single | 3-9-7 | 19 | 1 |
| May 16, 1991 | Single | 4-4-2 | 10 | 1 |