Double factorial

Double factorial - product of all the integers from 1 up to the integral input of the function that have the same parity as this input. Article "Double factorial" in Simple English Wikipedia has 25 points for quality (as of August 1, 2024). The article contains 3 references and 2 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that language version.

Since the creation of article "Double factorial", its content was written by 5 registered users of Simple English Wikipedia and edited by 154 registered Wikipedia users in all languages.

The article is cited 2 times in Simple English Wikipedia and cited 167 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #885 in April 2018
• Global: #53934 in September 2017

The highest popularity rank from 2008:

• Local (Simple English): #24072 in February 2024
• Global: #115676 in February 2024

There are 13 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from August 1, 2024 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Double factorial		54.596
2	Catalan (ca) Doble factorial		51.6525
3	Portuguese (pt) Duplo fatorial		35.5748
4	Spanish (es) Doble factorial		32.791
5	Simple English (simple) Double factorial		24.9848
6	Estonian (et) Kahekordne faktoriaal		24.8881
7	Japanese (ja) 二重階乗		24.3355
8	Hebrew (he) עצרת כפולה		16.5744
9	Arabic (ar) عاملي ثنائي		15.087
10	Dutch (nl) Dubbelfaculteit		14.55

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Double factorial" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Double factorial		988 080
2	Japanese (ja) 二重階乗		89 872
3	Spanish (es) Doble factorial		77 129
4	Portuguese (pt) Duplo fatorial		49 720
5	Dutch (nl) Dubbelfaculteit		16 434
6	Hebrew (he) עצרת כפולה		15 387
7	Swedish (sv) Semifakultet		11 772
8	Slovak (sk) Dvojitý faktoriál		7 133
9	Persian (fa) فاکتوریل دوبل		6 882
10	Arabic (ar) عاملي ثنائي		2 151

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Double factorial" in July 2024

#	Language	Popularity award	Relative popularity
1	English (en) Double factorial		7 268
2	Japanese (ja) 二重階乗		1 516
3	Portuguese (pt) Duplo fatorial		1 383
4	Spanish (es) Doble factorial		812
5	Simple English (simple) Double factorial		130
6	Hebrew (he) עצרת כפולה		106
7	Dutch (nl) Dubbelfaculteit		55
8	Persian (fa) فاکتوریل دوبل		48
9	Catalan (ca) Doble factorial		39
10	Swedish (sv) Semifakultet		28

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Double factorial" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Double factorial		67
2	Hebrew (he) עצרת כפולה		18
3	Spanish (es) Doble factorial		17
4	Dutch (nl) Dubbelfaculteit		12
5	Swedish (sv) Semifakultet		8
6	Persian (fa) فاکتوریل دوبل		5
7	Japanese (ja) 二重階乗		5
8	Portuguese (pt) Duplo fatorial		5
9	Simple English (simple) Double factorial		5
10	Slovak (sk) Dvojitý faktoriál		5

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Double factorial" with the highest AI in July 2024

#	Language	AI award	Relative AI
1	English (en) Double factorial		2
2	Portuguese (pt) Duplo fatorial		1
3	Arabic (ar) عاملي ثنائي		0
4	Catalan (ca) Doble factorial		0
5	Spanish (es) Doble factorial		0
6	Estonian (et) Kahekordne faktoriaal		0
7	Persian (fa) فاکتوریل دوبل		0
8	Hebrew (he) עצרת כפולה		0
9	Japanese (ja) 二重階乗		0
10	Dutch (nl) Dubbelfaculteit		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Double factorial" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Double factorial		70
2	Japanese (ja) 二重階乗		26
3	Catalan (ca) Doble factorial		16
4	Spanish (es) Doble factorial		12
5	Arabic (ar) عاملي ثنائي		8
6	Swedish (sv) Semifakultet		7
7	Portuguese (pt) Duplo fatorial		6
8	Estonian (et) Kahekordne faktoriaal		5
9	Dutch (nl) Dubbelfaculteit		5
10	Hebrew (he) עצרת כפולה		4

More...

#	Language	Value
ar	Arabic عاملي ثنائي
ca	Catalan Doble factorial
en	English Double factorial
es	Spanish Doble factorial
et	Estonian Kahekordne faktoriaal
fa	Persian فاکتوریل دوبل
he	Hebrew עצרת כפולה
ja	Japanese 二重階乗
nl	Dutch Dubbelfaculteit
pt	Portuguese Duplo fatorial
simple	Simple English Double factorial
sk	Slovak Dvojitý faktoriál
sv	Swedish Semifakultet

Best Rank

Simple English: #24072 02.2024

Global: #115676 02.2024

Best Rank

Simple English: #885 04.2018

Global: #53934 09.2017

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from August, 2024. When calculating current popularity and AI of articles data from July 2024 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2023... More information