The winning Connecticut Play3 numbers for September 21, 2017 were: day 5-8-4; night 7-1-6.
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, 2017 | Night | 7-1-6 | 14 | 5 |
| Sep 21, 2017 | Day | 5-8-4 | 17 | 8 |
| Sep 20, 2017 | Night | 4-9-8 | 21 | 3 |
| Sep 20, 2017 | Day | 0-5-1 | 6 | 6 |
| Sep 19, 2017 | Night | 2-4-2 | 8 | 8 |
| Sep 19, 2017 | Day | 3-7-7 | 17 | 8 |
| Sep 18, 2017 | Night | 5-8-6 | 19 | 1 |
| Sep 18, 2017 | Day | 2-0-2 | 4 | 4 |
| Sep 17, 2017 | Night | 4-9-0 | 13 | 4 |
| Sep 17, 2017 | Day | 7-2-2 | 11 | 2 |
| Sep 16, 2017 | Night | 6-7-8 | 21 | 3 |
| Sep 16, 2017 | Day | 0-6-3 | 9 | 9 |
| Sep 15, 2017 | Night | 5-7-3 | 15 | 6 |
| Sep 15, 2017 | Day | 2-4-4 | 10 | 1 |