The winning Michigan Daily 3 numbers for September 21, 1998 were: midday 6-3-0; evening 5-2-1.
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 |
|---|---|---|---|---|
| Sep 21, 1998 | Evening | 5-2-1 | 8 | 8 |
| Sep 21, 1998 | Midday | 6-3-0 | 9 | 9 |
| Sep 19, 1998 | Evening | 7-3-6 | 16 | 7 |
| Sep 19, 1998 | Midday | 6-0-2 | 8 | 8 |
| Sep 18, 1998 | Evening | 9-6-4 | 19 | 1 |
| Sep 18, 1998 | Midday | 0-7-4 | 11 | 2 |
| Sep 17, 1998 | Evening | 8-8-7 | 23 | 5 |
| Sep 17, 1998 | Midday | 2-7-0 | 9 | 9 |
| Sep 16, 1998 | Evening | 6-5-5 | 16 | 7 |
| Sep 16, 1998 | Midday | 9-8-0 | 17 | 8 |
| Sep 15, 1998 | Evening | 5-0-8 | 13 | 4 |
| Sep 15, 1998 | Midday | 6-0-3 | 9 | 9 |