The winning Michigan Daily 4 numbers for October 21, 2017 were: midday 7-8-2-0; evening 4-7-3-0.
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 | 4-7-3-0 | 14 | 5 |
| Oct 21, 2017 | Midday | 7-8-2-0 | 17 | 8 |
| Oct 20, 2017 | Evening | 5-0-0-5 | 10 | 1 |
| Oct 20, 2017 | Midday | 1-4-8-9 | 22 | 4 |
| Oct 19, 2017 | Evening | 7-5-0-4 | 16 | 7 |
| Oct 19, 2017 | Midday | 0-2-7-3 | 12 | 3 |
| Oct 18, 2017 | Evening | 6-8-6-4 | 24 | 6 |
| Oct 18, 2017 | Midday | 0-4-4-7 | 15 | 6 |
| Oct 17, 2017 | Evening | 3-3-1-8 | 15 | 6 |
| Oct 17, 2017 | Midday | 5-0-4-9 | 18 | 9 |
| Oct 16, 2017 | Evening | 6-1-7-1 | 15 | 6 |
| Oct 16, 2017 | Midday | 6-6-5-9 | 26 | 8 |
| Oct 15, 2017 | Evening | 7-3-2-3 | 15 | 6 |
| Oct 15, 2017 | Midday | 5-8-1-4 | 18 | 9 |