The winning Connecticut Play3 numbers for October 21, 2021 were: day 8-7-3; night 0-4-9.
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 |
|---|---|---|---|---|
| Oct 21, 2021 | Night | 0-4-9 | 13 | 4 |
| Oct 21, 2021 | Day | 8-7-3 | 18 | 9 |
| Oct 20, 2021 | Night | 1-5-2 | 8 | 8 |
| Oct 20, 2021 | Day | 7-6-5 | 18 | 9 |
| Oct 19, 2021 | Night | 0-0-8 | 8 | 8 |
| Oct 19, 2021 | Day | 5-8-8 | 21 | 3 |
| Oct 18, 2021 | Night | 4-4-2 | 10 | 1 |
| Oct 18, 2021 | Day | 5-4-3 | 12 | 3 |
| Oct 17, 2021 | Night | 8-9-4 | 21 | 3 |
| Oct 17, 2021 | Day | 4-8-1 | 13 | 4 |
| Oct 16, 2021 | Night | 6-1-8 | 15 | 6 |
| Oct 16, 2021 | Day | 6-7-5 | 18 | 9 |
| Oct 15, 2021 | Night | 3-6-6 | 15 | 6 |
| Oct 15, 2021 | Day | 9-4-1 | 14 | 5 |