Landau's problems

Landau's problems - four basic unsolved problems about prime numbers: Goldbach’s conjecture; twin prime conjecture; Legendre’s conjecture; whether there are infinitely many primes of the form ?²+1. Article “Landau's problems” in English Wikipedia has 48.8 points for quality (as of July 1, 2025). The article contains 40 references and 9 sections.

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

In June 2025 the article “Landau's problems” was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article “Landau's problems”, its content was written by 88 registered users of English Wikipedia and edited by 238 registered Wikipedia users in all languages.

The article is cited 47 times in English Wikipedia and cited 291 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #22095 in October 2023
• Global: #50731 in April 2009

The highest popularity rank from 2008:

• Local (English): #216516 in October 2024
• Global: #286709 in October 2024

There are 22 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.

#	Language	Quality grade	Quality score
1	Chinese (zh) 兰道问题		51.3171
2	English (en) Landau's problems		48.8413
3	Greek (el) Προβλήματα του Λαντάου		46.5428
4	Vietnamese (vi) Các bài toán của Landau		37.8144
5	Hungarian (hu) Landau-problémák		32.0742
6	Korean (ko) 란다우 문제		31.9072
7	Russian (ru) Проблемы Ландау		30.3176
8	Spanish (es) Problemas de Landau		26.3191
9	Portuguese (pt) Problemas de Landau		24.4748
10	Italian (it) Problemi di Landau		19.9481

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

The most popular language versions of the article "Landau's problems" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Landau's problems		482 739
2	Russian (ru) Проблемы Ландау		169 972
3	French (fr) Problèmes de Landau		31 707
4	Italian (it) Problemi di Landau		24 843
5	Spanish (es) Problemas de Landau		22 665
6	Portuguese (pt) Problemas de Landau		21 741
7	Hebrew (he) בעיות לנדאו		6 765
8	Korean (ko) 란다우 문제		6 004
9	Dutch (nl) Problemen van Landau		5 098
10	Chinese (zh) 兰道问题		4 545

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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 "Landau's problems" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Landau's problems		3 927
2	Russian (ru) Проблемы Ландау		662
3	French (fr) Problèmes de Landau		109
4	Chinese (zh) 兰道问题		104
5	Korean (ko) 란다우 문제		98
6	Italian (it) Problemi di Landau		77
7	Portuguese (pt) Problemas de Landau		74
8	Spanish (es) Problemas de Landau		58
9	Hebrew (he) בעיות לנדאו		36
10	Arabic (ar) معضلات لاندو		27

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

Language versions of the article "Landau's problems" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Landau's problems		88
2	French (fr) Problèmes de Landau		21
3	Italian (it) Problemi di Landau		18
4	Russian (ru) Проблемы Ландау		15
5	Danish (da) Landaus' problemer		10
6	Spanish (es) Problemas de Landau		10
7	Ukrainian (uk) Проблеми Ландау		10
8	Dutch (nl) Problemen van Landau		9
9	Hebrew (he) בעיות לנדאו		8
10	Portuguese (pt) Problemas de Landau		8

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

Language versions of the article "Landau's problems" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Landau's problems		1
2	Arabic (ar) معضلات لاندو		0
3	Catalan (ca) Problemes de Landau		0
4	Danish (da) Landaus' problemer		0
5	Greek (el) Προβλήματα του Λαντάου		0
6	Spanish (es) Problemas de Landau		0
7	Basque (eu) Landauren problemak		0
8	Finnish (fi) Landaun ongelmat		0
9	French (fr) Problèmes de Landau		0
10	Hebrew (he) בעיות לנדאו		0

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

Language versions of the article "Landau's problems" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Landau's problems		47
2	Hebrew (he) בעיות לנדאו		32
3	Russian (ru) Проблемы Ландау		28
4	Spanish (es) Problemas de Landau		26
5	Chinese (zh) 兰道问题		26
6	Hungarian (hu) Landau-problémák		24
7	Greek (el) Προβλήματα του Λαντάου		23
8	French (fr) Problèmes de Landau		18
9	Vietnamese (vi) Các bài toán của Landau		12
10	Portuguese (pt) Problemas de Landau		10

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#	Language	Value
ar	Arabic معضلات لاندو
ca	Catalan Problemes de Landau
da	Danish Landaus' problemer
el	Greek Προβλήματα του Λαντάου
en	English Landau's problems
es	Spanish Problemas de Landau
eu	Basque Landauren problemak
fi	Finnish Landaun ongelmat
fr	French Problèmes de Landau
he	Hebrew בעיות לנדאו
hu	Hungarian Landau-problémák
it	Italian Problemi di Landau
ko	Korean 란다우 문제
nl	Dutch Problemen van Landau
pt	Portuguese Problemas de Landau
ru	Russian Проблемы Ландау
simple	Simple English Landau's problems
sl	Slovenian Landauovi problemi
sv	Swedish Landaus problem
uk	Ukrainian Проблеми Ландау
vi	Vietnamese Các bài toán của Landau
zh	Chinese 兰道问题

Best Rank

English: #216516 10.2024

Global: #286709 10.2024

Best Rank

English: #22095 10.2023

Global: #50731 04.2009

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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 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