Number 31

In Atlantic 49 under the 6/49 · May 2025 – Sep 2025 rules — 37 draws, 6 from 1–49 (an earlier era).

4times drawn · chance expected 5 −0.27σ

3draws waiting · a wait this long: 77% for any number

5.3average wait between appearances · chance says 8.2

10longest completed wait · 67% chance of one at least that long

31 is drawn as often as chance explains

Drawn 4 times in 37 draws against 4.5 expected, −0.27σ. Each draw is independent: after 3 draws away it is exactly as likely tonight as a number drawn yesterday.

Number 31, draw by draw

Drawn 4 times in 37 draws · average wait 5.3 draws · longest completed wait 10 · waiting 3 draws now

a completed wait — darker is longer the wait still running — a lower bound, not a finished gap

Too few completed waits to plot a distribution for this number alone.

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 smallest1 · chance 0.8
4th smallest1 · chance 1.5
5th smallest2 · chance 1.2
6th smallest0 · chance 0.3

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 0.4 shared draws, and the leaders are simply the ones that came out ahead this time.

3 8 18 44 46 1

Never drawn alongside 33 of the other 48 numbers; chance expects about 32 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.

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
2025-09-13	1	3rd	8 18 31 34 41 42
2025-09-10	10	5th	1 8 17 20 31 46
2025-08-06	5	5th	3 4 5 18 31 44

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 6/49 tonight whatever it did last week.