In Lotto under the 6/58 + 1/56 · since Sep 2025 rules — 107 draws, 6 from 1–58.
6times drawn · chance expected 11 −1.61σ
10draws waiting · a wait this long: 37% for any number
17.8average wait between appearances · chance says 9.7
35longest completed wait · 12% chance of one at least that long
31 is drawn as often as chance explains
Drawn 6 times in 107 draws against 11.1 expected, −1.61σ. 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 6 times in 107 draws · average wait 17.8 draws · longest completed wait 35 · 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 35 of the other 57 numbers; chance expects about 34 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 58. 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 6/58 tonight whatever it did last week.