The winning Michigan Daily 3 numbers for May 21, 2017 were: midday 5-3-2; evening 6-9-9.
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).
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 |
|---|---|---|---|---|
| May 21, 2017 | Evening | 6-9-9 | 24 | 6 |
| May 21, 2017 | Midday | 5-3-2 | 10 | 1 |
| May 20, 2017 | Evening | 0-8-2 | 10 | 1 |
| May 20, 2017 | Midday | 5-1-9 | 15 | 6 |
| May 19, 2017 | Evening | 7-3-4 | 14 | 5 |
| May 19, 2017 | Midday | 3-4-4 | 11 | 2 |
| May 18, 2017 | Evening | 7-4-3 | 14 | 5 |
| May 18, 2017 | Midday | 3-4-6 | 13 | 4 |
| May 17, 2017 | Evening | 6-7-9 | 22 | 4 |
| May 17, 2017 | Midday | 3-5-2 | 10 | 1 |
| May 16, 2017 | Evening | 6-9-4 | 19 | 1 |
| May 16, 2017 | Midday | 6-4-1 | 11 | 2 |
| May 15, 2017 | Evening | 0-0-7 | 7 | 7 |
| May 15, 2017 | Midday | 6-9-4 | 19 | 1 |