The winning Massachusetts The Numbers Game numbers for October 21, 1998 were: evening 5-7-3-4.
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, 1998 | Evening | 5-7-3-4 | 19 | 1 |
| Oct 20, 1998 | Evening | 8-3-3-5 | 19 | 1 |
| Oct 19, 1998 | Evening | 8-2-8-0 | 18 | 9 |
| Oct 18, 1998 | Evening | 0-5-1-3 | 9 | 9 |
| Oct 17, 1998 | Evening | 3-1-6-6 | 16 | 7 |
| Oct 16, 1998 | Evening | 5-2-7-3 | 17 | 8 |
| Oct 15, 1998 | Evening | 9-3-0-0 | 12 | 3 |