In MillionDay Day under the 5/55 · since Sep 2024 rules — 727 draws, 5 from 1–55.
55times drawn · chance expected 66 −1.43σ
5draws waiting · a wait this long: 68% for any number
12.9average wait between appearances · chance says 11.0
51longest completed wait · 37% chance of one at least that long
21 is drawn as often as chance explains
Drawn 55 times in 727 draws against 66.1 expected, −1.43σ. Each draw is independent: after 5 draws away it is exactly as likely tonight as a number drawn yesterday.
21
Number 21, draw by draw
Drawn 55 times in 727 draws · average wait 12.9 draws · longest completed wait 51 · waiting 5 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.
It has shared a draw with every one of the other 54 numbers; chance expected about 0.9 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 55. That changes nothing about whether it comes up, and everything about how many ways a jackpot on it would be shared.
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 5/55 tonight whatever it did last week.