The winning New York Numbers numbers for October 21, 2017 were: midday 4-0-4; evening 3-8-8.
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).
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 21, 2017 | Evening | 3-8-8 | 19 | 1 |
| Oct 21, 2017 | Midday | 4-0-4 | 8 | 8 |
| Oct 20, 2017 | Evening | 3-7-6 | 16 | 7 |
| Oct 20, 2017 | Midday | 3-6-7 | 16 | 7 |
| Oct 19, 2017 | Evening | 2-6-4 | 12 | 3 |
| Oct 19, 2017 | Midday | 9-6-6 | 21 | 3 |
| Oct 18, 2017 | Evening | 3-6-0 | 9 | 9 |
| Oct 18, 2017 | Midday | 3-2-5 | 10 | 1 |
| Oct 17, 2017 | Evening | 3-0-3 | 6 | 6 |
| Oct 17, 2017 | Midday | 7-7-7 | 21 | 3 |
| Oct 16, 2017 | Evening | 3-2-4 | 9 | 9 |
| Oct 16, 2017 | Midday | 4-5-8 | 17 | 8 |
| Oct 15, 2017 | Evening | 4-8-0 | 12 | 3 |
| Oct 15, 2017 | Midday | 9-9-1 | 19 | 1 |