The winning Delaware Play 4 numbers for August 16, 1998 were: night 3-5-1-7.
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 16, 1998 | Night | 3-5-1-7 | 16 | 7 |
| Aug 15, 1998 | Night | 3-3-6-5 | 17 | 8 |
| Aug 15, 1998 | Day | 4-8-5-7 | 24 | 6 |
| Aug 14, 1998 | Night | 4-1-5-3 | 13 | 4 |
| Aug 14, 1998 | Day | 7-9-9-4 | 29 | 2 |
| Aug 13, 1998 | Night | 0-6-5-1 | 12 | 3 |
| Aug 13, 1998 | Day | 3-2-6-5 | 16 | 7 |
| Aug 12, 1998 | Night | 6-3-5-3 | 17 | 8 |
| Aug 12, 1998 | Day | 3-7-1-9 | 20 | 2 |
| Aug 11, 1998 | Night | 0-1-4-4 | 9 | 9 |
| Aug 11, 1998 | Day | 9-4-9-7 | 29 | 2 |
| Aug 10, 1998 | Night | 8-4-9-2 | 23 | 5 |
| Aug 10, 1998 | Day | 0-0-9-2 | 11 | 2 |