The winning New York Win 4 numbers for February 21, 1998 were: evening 8-1-5-9.
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 |
|---|---|---|---|---|
| Feb 21, 1998 | Evening | 8-1-5-9 | 23 | 5 |
| Feb 20, 1998 | Evening | 8-6-6-4 | 24 | 6 |
| Feb 19, 1998 | Evening | 8-0-7-9 | 24 | 6 |
| Feb 18, 1998 | Evening | 3-6-3-0 | 12 | 3 |
| Feb 17, 1998 | Evening | 5-9-0-3 | 17 | 8 |
| Feb 16, 1998 | Evening | 9-1-9-2 | 21 | 3 |
| Feb 15, 1998 | Evening | 8-8-4-3 | 23 | 5 |