Number 21

In VinciCasa under the 5/40 · since Sep 2024 rules — 747 draws, 5 from 1–40.

81times drawn · chance expected 93 −1.37σ

12draws waiting · a wait this long: 23% for any number

9.1average wait between appearances · chance says 8.0

28longest completed wait · 89% chance of one at least that long

21 is drawn as often as chance explains

Drawn 81 times in 747 draws against 93.4 expected, −1.37σ. Each draw is independent: after 12 draws away it is exactly as likely tonight as a number drawn yesterday.

Number 21, draw by draw

Drawn 81 times in 747 draws · average wait 9.1 draws · longest completed wait 28 · waiting 12 draws now

a completed wait — darker is longer the wait still running — a lower bound, not a finished gap

Where it lands in a sorted draw

Sort a draw and 21 has a favourite seat — chance gives a large number the high positions more often. That is the shape of sorting, not of the machine.

1st smallest4 · chance 3.8
2nd smallest18 · chance 19.1
3rd smallest38 · chance 32.0
4th smallest13 · chance 21.3
5th smallest8 · chance 4.8

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 8.3 shared draws, and the leaders are simply the ones that came out ahead this time.

3 12 13 26 28 5

It has shared a draw with every one of the other 39 numbers; chance expected about 0.0 still unmet by now. Every pair →

How many people play it

Under the crowd model, 21 is picked about 1.22× as often as an indifferent choice — 15th most popular of 40. That changes nothing about whether it comes up, and everything about how many ways a jackpot on it would be shared.

Numbers 1–31 — the birthday zone ×1.22

The model and its sources → · What people believe about 21 →

Every draw it appeared in

Date	Wait	Position	The draw
2026-10-12	11	4th	5 7 12 21 25
2026-10-01	14	2nd	3 21 22 34 36
2026-09-17	5	4th	4 9 17 21 29
2026-09-12	2	3rd	1 3 21 31

What this cannot tell you

Nothing here predicts the next draw. A number’s history is a record of a fair machine’s past, and the machine keeps none of it: 21 is drawn with probability 5/40 tonight whatever it did last week.

2026-02-11	2	3rd	10 17 21 22 30
2026-02-09	10	3rd	2 16 21 25 34
2026-01-30	4	4th	1 19 20 21 23
2026-01-26	3	5th	3 9 10 16 21
2026-01-23	1	3rd	5 8 21 28 30
2026-01-22	8	2nd	4 21 23 25 28
2026-01-14	12	2nd	11 21 25 27 37
2026-01-02	2	1st	21 25 26 31 33
2025-12-31	12	1st	21 28 30 31 39
2025-12-18	12	2nd	3 21 22 26 36
2025-12-06	12	3rd	13 15 21 29 37
2025-11-24	1	2nd	13 21 26 37 40
2025-11-23	21	2nd	15 21 22 23 40
2025-10-24	3	5th	5 8 9 10 21
2025-10-21	23	2nd	10 21 28 32 37
2025-09-26	16	3rd	11 18 21 27 40
2025-09-10	28	5th	9 11 12 17 21
2025-08-13	2	3rd	12 17 21 33 38
2025-08-11	11	2nd	3 21 26 35 39
2025-07-31	3	3rd	9 12 21 25 40
2025-07-28	11	3rd	5 17 21 31 35
2025-07-17	1	4th	15 17 19 21 26
2025-07-16	6	4th	5 7 9 21 28
2025-07-10	20	4th	1 3 5 21 31
2025-06-20	15	3rd	2 12 21 27 32
2025-06-05	1	3rd	11 13 21 31 35
2025-06-04	7	4th	3 13 20 21 24
2025-05-28	16	2nd	6 21 24 30 37
2025-05-12	3	3rd	12 17 21 29 30
2025-05-09	8	3rd	3 14 21 31 34
2025-05-01	16	2nd	16 21 22 27 34
2025-04-15	5	4th	9 12 19 21 30
2025-04-10	7	1st	21 30 35 37 38
2025-04-03	2	3rd	15 19 21 27 32
2025-04-01	6	5th	7 9 13 20 21
2025-03-26	9	3rd	8 12 21 25 26
2025-03-17	2	2nd	19 21 22 35 40
2025-03-15	5	3rd	4 6 21 27 29
2025-03-10	13	3rd	4 5 21 29 39
2025-02-25	4	3rd	6 12 21 29 31
2025-02-21	14	3rd	8 9 21 23 24
2025-02-07	12	4th	3 18 20 21 24
2025-01-26	2	3rd	16 18 21 26 31
2025-01-24	9	3rd	1 3 21 27 29
2025-01-15	3	5th	2 9 18 19 21
2025-01-12	10	5th	1 2 17 19 21
2025-01-02	2	3rd	13 16 21 38 39
2024-12-31	18	3rd	2 7 21 23 26
2024-12-13	26	3rd	3 11 21 27 34
2024-11-17	19	3rd	13 14 21 24 32
2024-10-29	7	4th	8 10 17 21 28
2024-10-22	9	3rd	12 16 21 28 37
2024-10-13	8	2nd	19 21 28 32 39
2024-10-05	4	2nd	8 21 34 35 40
2024-10-01	1	3rd	5 20 21 32 36
2024-09-30	1	2nd	16 21 26 27 40
2024-09-29	—	4th	4 5 14 21 35