421

ja

WikiRank.net
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421

Quality:

421 - natural number. Article “421” in Japanese Wikipedia has 2.6 points for quality (as of July 1, 2025). The article contains 0 references and 3 sections.

This article has the best quality in Russian Wikipedia. However, this article is the most popular in Japanese version.

Since the creation of article “421”, its content was written by 16 registered users of Japanese Wikipedia and edited by 73 registered Wikipedia users in all languages.

The article is cited 33 times in Japanese Wikipedia and cited 6769 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Japanese): #22070 in November 2017
  • Global: #70767 in January 2017

The highest popularity rank from 2008:

  • Local (Japanese): #84347 in April 2015
  • Global: #759549 in April 2015

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 July 1, 2025 (including revision history and pageviews for previous years).

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

Languages with the highest quality

#LanguageQuality gradeQuality score
1Russian (ru)
421 (число)
31.9419
2Swedish (sv)
421 (tal)
26.0147
3Uzbek (uz)
421 (son)
18.9956
4Korean (ko)
421
13.5858
5Czech (cs)
421 (číslo)
5.0652
6Dutch (nl)
421 (getal)
3.951
7Italian (it)
421 (numero)
3.809
8Japanese (ja)
421
2.5659
9Urdu (ur)
421 (عدد)
1.4627
10Hungarian (hu)
421 (szám)
1.4576
More...

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

Most popular in all the time

The most popular language versions of the article "421" in all the time
#LanguagePopularity awardRelative popularity
1Japanese (ja)
421
34 275
2Russian (ru)
421 (число)
11 130
3Korean (ko)
421
6 584
4Italian (it)
421 (numero)
5 811
5Czech (cs)
421 (číslo)
2 759
6Hungarian (hu)
421 (szám)
2 238
7Urdu (ur)
421 (عدد)
953
8Malay (ms)
421 (nombor)
698
9Swedish (sv)
421 (tal)
640
10Vietnamese (vi)
421 (số)
584
More...

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

Most popular in June 2025

The most popular language versions of the article "421" in June 2025
#LanguagePopularity awardRelative popularity
1Japanese (ja)
421
63
2Russian (ru)
421 (число)
53
3Korean (ko)
421
25
4Czech (cs)
421 (číslo)
17
5Italian (it)
421 (numero)
12
6Hungarian (hu)
421 (szám)
11
7Malay (ms)
421 (nombor)
9
8Swedish (sv)
421 (tal)
9
9Dutch (nl)
421 (getal)
5
10Uzbek (uz)
421 (son)
5
More...

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

The highest AI

Language versions of the article "421" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1Japanese (ja)
421
16
2Russian (ru)
421 (число)
15
3Italian (it)
421 (numero)
14
4Hungarian (hu)
421 (szám)
4
5Swedish (sv)
421 (tal)
4
6Czech (cs)
421 (číslo)
3
7Korean (ko)
421
3
8Uzbek (uz)
421 (son)
3
9Vietnamese (vi)
421 (số)
3
10Basque (eu)
Laurehun eta hogeita bat
2
More...

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

The highest AI in June 2025

Language versions of the article "421" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Czech (cs)
421 (číslo)
0
2Basque (eu)
Laurehun eta hogeita bat
0
3Hungarian (hu)
421 (szám)
0
4Italian (it)
421 (numero)
0
5Japanese (ja)
421
0
6Korean (ko)
421
0
7Malay (ms)
421 (nombor)
0
8Dutch (nl)
421 (getal)
0
9Russian (ru)
421 (число)
0
10Swedish (sv)
421 (tal)
0
More...

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

The highest CI

Language versions of the article "421" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Urdu (ur)
421 (عدد)
3 545
2Korean (ko)
421
1 156
3Uzbek (uz)
421 (son)
910
4Vietnamese (vi)
421 (số)
598
5Hungarian (hu)
421 (szám)
236
6Swedish (sv)
421 (tal)
162
7Czech (cs)
421 (číslo)
103
8Japanese (ja)
421
33
9Italian (it)
421 (numero)
11
10Dutch (nl)
421 (getal)
5
More...

Scores

Estimated value for Wikipedia:
Japanese:
Global:
Popularity in June 2025:
Japanese:
Global:
Popularity in all years:
Japanese:
Global:
Authors in June 2025:
Japanese:
Global:
Registered authors in all years:
Japanese:
Global:
Citations:
Japanese:
Global:

Quality measures

Interwikis

#LanguageValue
csCzech
421 (číslo)
euBasque
Laurehun eta hogeita bat
huHungarian
421 (szám)
itItalian
421 (numero)
jaJapanese
421
koKorean
421
msMalay
421 (nombor)
nlDutch
421 (getal)
ruRussian
421 (число)
svSwedish
421 (tal)
urUrdu
421 (عدد)
uzUzbek
421 (son)
viVietnamese
421 (số)

Popularity rank trends

Best Rank Japanese:
#84347
04.2015
Global:
#759549
04.2015

AI rank trends

Best Rank Japanese:
#22070
11.2017
Global:
#70767
01.2017

Languages comparison

Important global interconnections (July 2024 – June 2025)

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

ja: 421
ko: 421

News from 28 January 2026

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In Japanese Wikipedia the most popular articles on that day were: 羽月隆太郎, 塩屋浩三, 大石晃子, 唐橋ユミ, ディアトロフ峠事件, 岩城滉一, 塩屋翼, M!LK, 濱正悟, 森下千里.

About WikiRank

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 July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information