Number 13

In Lotto under the 6/45 + 1/45 · Jan 2010 – Oct 2015 rules — 601 draws, 6 from 1–45 (an earlier era).

70times drawn · chance expected 80 −1.22σ

22draws waiting · a wait this long: 5% for any number

8.3average wait between appearances · chance says 7.5

51longest completed wait · 5% chance of one at least that long

13 is drawn as often as chance explains

Drawn 70 times in 601 draws against 80.1 expected, −1.22σ. Each draw is independent: after 22 draws away it is exactly as likely tonight as a number drawn yesterday. It has also come out as the bonus ball 10 times, counted separately.

Number 13, draw by draw

Drawn 70 times in 601 draws · average wait 8.3 draws · longest completed wait 51 · waiting 22 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 13 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 13.0
2nd smallest31 · chance 27.8
3rd smallest20 · chance 21.1
4th smallest9 · chance 7.0
5th smallest1 · chance 1.0
6th smallest0 · chance 0.1

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 8.0 shared draws, and the leaders are simply the ones that came out ahead this time.

20 24 2 42 6 7

It has shared a draw with every one of the other 44 numbers; chance expected about 0.0 still unmet by now. Every pair →

How many people play it

Under the crowd model, 13 is picked about 0.92× as often as an indifferent choice — 31st 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 number 13, in Western markets ×0.75

The model and its sources → · What people believe about 13 →

Every draw it appeared in

Date	Wait	Position	The draw
2015-07-18	5	3rd	7 10 13 24 27 35
2015-07-01	15	2nd	6 13 16 29 34 42
2015-05-09	1	3rd	2 5 13 17 32 34
2015-05-06	4	2nd

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

2013-05-15	10	2nd	10 13 23 36 40 42
2013-04-10	18	3rd	6 7 13 34 44 45
2013-02-06	3	4th	3 5 9 13 25 42
2013-01-26	4	3rd	3 9 13 20 21 41
2013-01-12	8	2nd	2 13 22 24 32 33
2012-12-15	29	2nd	3 13 15 22 26 30
2012-09-05	15	3rd	4 12 13 23 36 38
2012-07-14	3	1st	13 25 26 41 42 43
2012-07-04	5	2nd	7 13 21 31 36 42
2012-06-16	2	4th	2 6 9 13 30 36
2012-06-09	1	1st	13 17 26 33 36 45
2012-06-06	7	2nd	12 13 18 24 39 44
2012-05-12	3	2nd	3 13 14 21 35 42
2012-05-02	10	3rd	8 9 13 14 20 36
2012-03-28	7	2nd	11 13 17 23 28 40
2012-03-03	3	2nd	12 13 25 36 41 45
2012-02-22	2	2nd	11 13 15 20 28 33
2012-02-15	4	5th	1 6 8 10 13 14
2012-02-01	2	2nd	2 13 20 23 26 30
2012-01-25	13	3rd	1 11 13 14 15 37
2011-12-10	7	3rd	4 9 13 18 37 40
2011-11-16	25	4th	5 9 11 13 28 43
2011-08-20	9	2nd	1 13 29 34 42 43
2011-07-20	11	4th	3 6 10 13 14 34
2011-06-11	4	3rd	2 11 13 18 20 30
2011-05-28	3	2nd	1 13 16 17 20 22
2011-05-18	1	3rd	2 12 13 15 32 42
2011-05-14	36	4th	2 6 12 13 26 29
2011-01-08	21	3rd	5 9 13 17 24 38
2010-10-27	3	2nd	3 13 15 23 29 39
2010-10-16	3	2nd	1 13 15 24 40 45
2010-10-06	2	2nd	7 13 17 29 37 39
2010-09-29	3	1st	13 20 23 26 41 44
2010-09-18	6	3rd	4 9 13 22 27 39
2010-08-28	4	1st	13 23 30 37 43 45
2010-08-14	9	2nd	9 13 15 21 23 38
2010-07-14	2	2nd	5 13 31 36 42 43
2010-07-07	2	4th	2 5 7 13 20 34
2010-06-30	17	2nd	7 13 16 23 26 39
2010-05-01	5	3rd	2 3 13 15 30 40
2010-04-14	7	2nd	6 13 24 33 34 38
2010-03-20	5	1st	13 20 24 28 34 41
2010-03-03	9	2nd	7 13 15 36 37 39
2010-01-30	4	3rd	3 4 13 29 34 36
2010-01-16	2	2nd	4 13 16 19 30 45
2010-01-09	—	2nd	2 13 24 29 32 42