Number 13

In Lotto under the 6/52 · Jan 2010 – Oct 2012 rules — 442 draws, 6 from 1–52 (an earlier era).

56times drawn · chance expected 51 +0.74σ

4draws waiting · a wait this long: 69% for any number

7.8average wait between appearances · chance says 8.7

32longest completed wait · 71% chance of one at least that long

13 is drawn as often as chance explains

Drawn 56 times in 442 draws against 51.0 expected, +0.74σ. Each draw is independent: after 4 draws away it is exactly as likely tonight as a number drawn yesterday.

Number 13, draw by draw

Drawn 56 times in 442 draws · average wait 7.8 draws · longest completed wait 32 · waiting 4 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 smallest14 · chance 13.7
2nd smallest23 · chance 23.5
3rd smallest13 · chance 14.4
4th smallest5 · chance 3.9
5th smallest1 · chance 0.5
6th smallest0 · chance 0.0

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 5.5 shared draws, and the leaders are simply the ones that came out ahead this time.

42 49 8 22 36 44

It has shared a draw with every one of the other 51 numbers; chance expected about 0.2 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 52. 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
2012-10-20	11	1st	13 19 26 29 36 47
2012-09-24	21	2nd	3 13 20 44 49 51
2012-08-06	13	2nd	1 13 22 42 47 50
2012-07-07

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 6/52 tonight whatever it did last week.

2011-07-04	13	2nd	6 13 16 18 29 45
2011-06-04	13	2nd	8 13 28 34 44 51
2011-05-04	4	2nd	11 13 28 32 42 46
2011-04-25	5	2nd	6 13 14 25 32 45
2011-04-13	2	2nd	8 13 21 26 44 46
2011-04-09	2	2nd	5 13 22 25 42 44
2011-04-04	4	3rd	3 5 13 40 47 50
2011-03-26	3	2nd	8 13 27 32 43 50
2011-03-19	2	3rd	9 11 13 22 38 49
2011-03-14	3	1st	13 18 19 22 25 44
2011-03-07	12	2nd	10 13 18 22 25 42
2011-02-07	18	3rd	3 12 13 31 41 46
2010-12-27	9	2nd	10 13 17 33 35 40
2010-12-06	6	3rd	4 10 13 21 31 49
2010-11-22	9	2nd	7 13 22 38 45 46
2010-11-01	4	3rd	1 6 13 23 34 52
2010-10-23	5	3rd	2 10 13 29 38 42
2010-10-11	7	2nd	3 13 23 33 46 52
2010-09-25	3	2nd	12 13 14 22 44 45
2010-09-18	3	2nd	9 13 15 24 31 40
2010-09-11	3	2nd	2 13 14 33 42 51
2010-09-04	6	1st	13 18 25 36 42 44
2010-08-21	6	4th	6 8 11 13 18 46
2010-08-07	6	3rd	4 7 13 37 45 47
2010-07-24	24	4th	1 3 4 13 37 40
2010-05-29	19	2nd	8 13 23 34 44 51
2010-04-14	4	2nd	7 13 20 21 41 47
2010-04-05	15	1st	13 22 28 39 42 43
2010-03-01	9	4th	3 4 8 13 43 49
2010-02-08	3	3rd	1 8 13 18 32 36
2010-02-01	5	4th	7 8 11 13 42 49
2010-01-20	—	2nd	2 13 15 41 48 50