The winning Arkansas Cash 4 numbers for October 21, 2017 were: midday 1-1-8-1; evening 0-8-9-8.
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 | 0-8-9-8 | 25 | 7 |
| Oct 21, 2017 | Midday | 1-1-8-1 | 11 | 2 |
| Oct 20, 2017 | Evening | 3-6-1-1 | 11 | 2 |
| Oct 20, 2017 | Midday | 8-7-0-3 | 18 | 9 |
| Oct 19, 2017 | Evening | 1-2-4-2 | 9 | 9 |
| Oct 19, 2017 | Midday | 9-9-3-3 | 24 | 6 |
| Oct 18, 2017 | Evening | 4-7-0-7 | 18 | 9 |
| Oct 18, 2017 | Midday | 6-6-5-5 | 22 | 4 |
| Oct 17, 2017 | Evening | 5-3-4-3 | 15 | 6 |
| Oct 17, 2017 | Midday | 9-1-5-3 | 18 | 9 |
| Oct 16, 2017 | Evening | 5-7-8-7 | 27 | 9 |
| Oct 16, 2017 | Midday | 6-1-9-0 | 16 | 7 |
| Oct 15, 2017 | Evening | 8-3-7-9 | 27 | 9 |