Number 31

In Lottario under the 6/45 + 1/45 · since Sep 2024 rules — 107 draws, 6 from 1–45.

9times drawn · chance expected 14 −1.50σ

10draws waiting · a wait this long: 28% for any number

11.8average wait between appearances · chance says 7.5

33longest completed wait · 8% chance of one at least that long

31 is drawn as often as chance explains

Drawn 9 times in 107 draws against 14.3 expected, −1.50σ. Each draw is independent: after 10 draws away it is exactly as likely tonight as a number drawn yesterday. It has also come out as the bonus ball 4 times, counted separately.

Number 31, draw by draw

Drawn 9 times in 107 draws · average wait 11.8 draws · longest completed wait 33 · 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.

1st smallest0 · chance 0.0
2nd smallest0 · chance 0.2
3rd smallest3 · chance 1.3
4th smallest4 · chance 3.1
5th smallest1 · chance 3.2
6th smallest1 · chance 1.2

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 1.0 shared draws, and the leaders are simply the ones that came out ahead this time.

16 37 45 2 6 14

Never drawn alongside 13 of the other 44 numbers; chance expects about 16 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 45. 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 31 →

Every draw it appeared in

Date	Wait	Position	The draw
2026-08-01	17	4th	12 16 28 31 37 41
2026-04-04	7	3rd	28 30 31 37 41 45
2026-02-14	1	3rd	1 21 31 36 37 45
2026-02-07	14	5th

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: 31 is drawn with probability 6/45 tonight whatever it did last week.