Number 15

In Lotto under the 5/90 · since Oct 2025 rules — 113 draws, 5 from 1–90.

13times drawn · chance expected 6 +2.76σ

7draws waiting · a wait this long: 71% for any number

8.7average wait between appearances · chance says 18.0

21longest completed wait · 99% chance of one at least that long

15 is drawn as often as chance explains

Drawn 13 times in 113 draws against 6.3 expected, +2.76σ. Each draw is independent: after 7 draws away it is exactly as likely tonight as a number drawn yesterday.

Number 15, draw by draw

Drawn 13 times in 113 draws · average wait 8.7 draws · longest completed wait 21 · waiting 7 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 15 has a favourite seat — chance gives a small number the low positions more often. That is the shape of sorting, not of the machine.

1st smallest9 · chance 6.5
2nd smallest2 · chance 5.0
3rd smallest2 · chance 1.3
4th smallest0 · chance 0.1
5th smallest0 · chance 0.0

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 0.6 shared draws, and the leaders are simply the ones that came out ahead this time.

11 16 18 22 23 55

Never drawn alongside 47 of the other 89 numbers; chance expects about 50 such strangers by now. Every pair →

How many people play it

Under the crowd model, 15 is picked about 1.22× as often as an indifferent choice — 15th most popular of 90. 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 15 →

Every draw it appeared in

Date	Wait	Position	The draw
2026-09-24	2	3rd	2 11 15 22 66
2026-09-19	17	1st	15 17 34 39 83
2026-08-14	21	2nd	11 15 22 27 64
2026-07-07	2	1st	15 18 23 43 55

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: 15 is drawn with probability 5/90 tonight whatever it did last week.