Number 21

In Lotto under the 6/58 + 1/56 · since Sep 2025 rules — 107 draws, 6 from 1–58.

9times drawn · chance expected 11 −0.66σ

11draws waiting · a wait this long: 34% for any number

10.6average wait between appearances · chance says 9.7

25longest completed wait · 45% chance of one at least that long

21 is drawn as often as chance explains

Drawn 9 times in 107 draws against 11.1 expected, −0.66σ. Each draw is independent: after 11 draws away it is exactly as likely tonight as a number drawn yesterday.

Number 21, draw by draw

Drawn 9 times in 107 draws · average wait 10.6 draws · longest completed wait 25 · waiting 11 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 small number the low positions more often. That is the shape of sorting, not of the machine.

1st smallest1 · chance 0.9
2nd smallest1 · chance 2.8
3rd smallest6 · chance 3.2
4th smallest1 · chance 1.6
5th smallest0 · chance 0.4
6th smallest0 · chance 0.0

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 0.8 shared draws, and the leaders are simply the ones that came out ahead this time.

56 24 51 1 10 12

Never drawn alongside 24 of the other 57 numbers; chance expects about 26 such strangers 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 58. 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
2026-09-02	4	3rd	9 15 21 24 30 39
2026-08-19	12	3rd	10 19 21 40 50 51
2026-07-08	3	3rd	11 13 21 22 29 36
2026-06-27	8	3rd	2 10

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 6/58 tonight whatever it did last week.