In Lotto 6aus49 under the 6/49 + 1/9 · since Sep 2024 rules — 213 draws, 6 from 1–49.
16times drawn · chance expected 26 −2.11σ
10draws waiting · a wait this long: 31% for any number
13.0average wait between appearances · chance says 8.2
55longest completed wait · 1% chance of one at least that long
31 is drawn as often as chance explains
Drawn 16 times in 213 draws against 26.1 expected, −2.11σ. Each draw is independent: after 10 draws away it is exactly as likely tonight as a number drawn yesterday.
31
Number 31, draw by draw
Drawn 16 times in 213 draws · average wait 13.0 draws · longest completed wait 55 · waiting 10 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 31 has a favourite seat — chance gives a large number the high positions more often. That is the shape of sorting, not of the machine.
Never drawn alongside 7 of the other 48 numbers; chance expects about 9 such strangers by now. Every pair →
How many people play it
Under the crowd model, 31 is picked about 1.22× as often as an indifferent choice — 15th most popular of 49. 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: 31 is drawn with probability 6/49 tonight whatever it did last week.