Problem Riesela

Riesel number - odd natural number k such that k·2^n − 1 is composite for all natural n. Article “Problem Riesela” in Polish Wikipedia has 1.4 points for quality (as of July 1, 2026).

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

Since the creation of article “Problem Riesela”, its content was written by 5 registered users of Polish Wikipedia and edited by 165 registered Wikipedia users in all languages.

The article is cited 1 times in Polish Wikipedia and cited 396 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Polish): #12935 in June 2010
• Global: #47611 in September 2003

The highest popularity rank from 2008:

• Local (Polish): #349269 in August 2010
• Global: #691113 in January 2008

There are 11 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, 2026 (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) Riesel number		28.5916
2	Russian (ru) Числа Ризеля		15.3853
3	Chinese (zh) 黎瑟尔数		13.8283
4	Romanian (ro) Număr Riesel		12.6269
5	French (fr) Nombre de Riesel		10.0566
6	Ukrainian (uk) Числа Різеля		5.2761
7	Italian (it) Numero di Riesel		2.4525
8	Norwegian (no) Rieseltall		2.1366
9	Dutch (nl) Rieselgetal		2.0799
10	Polish (pl) Problem Riesela		1.3767

More...

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

The most popular language versions of the article "Problem Riesela" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Riesel number		105 810
2	Italian (it) Numero di Riesel		12 870
3	French (fr) Nombre de Riesel		11 633
4	Russian (ru) Числа Ризеля		11 621
5	Dutch (nl) Rieselgetal		7 449
6	Polish (pl) Problem Riesela		4 895
7	Chinese (zh) 黎瑟尔数		4 384
8	Norwegian (no) Rieseltall		3 272
9	Finnish (fi) Rieselin luku		989
10	Ukrainian (uk) Числа Різеля		966

More...

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 "Problem Riesela" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Riesel number		430
2	Chinese (zh) 黎瑟尔数		31
3	Russian (ru) Числа Ризеля		24
4	Italian (it) Numero di Riesel		19
5	Finnish (fi) Rieselin luku		8
6	French (fr) Nombre de Riesel		8
7	Dutch (nl) Rieselgetal		7
8	Norwegian (no) Rieseltall		5
9	Polish (pl) Problem Riesela		5
10	Romanian (ro) Număr Riesel		4

More...

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

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

#	Language	AI award	Relative AI
1	English (en) Riesel number		67
2	Dutch (nl) Rieselgetal		23
3	Italian (it) Numero di Riesel		19
4	French (fr) Nombre de Riesel		15
5	Russian (ru) Числа Ризеля		13
6	Ukrainian (uk) Числа Різеля		8
7	Finnish (fi) Rieselin luku		6
8	Polish (pl) Problem Riesela		5
9	Norwegian (no) Rieseltall		4
10	Chinese (zh) 黎瑟尔数		3

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 "Problem Riesela" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Chinese (zh) 黎瑟尔数		1
2	English (en) Riesel number		0
3	Finnish (fi) Rieselin luku		0
4	French (fr) Nombre de Riesel		0
5	Italian (it) Numero di Riesel		0
6	Dutch (nl) Rieselgetal		0
7	Norwegian (no) Rieseltall		0
8	Polish (pl) Problem Riesela		0
9	Romanian (ro) Număr Riesel		0
10	Russian (ru) Числа Ризеля		0

More...

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

Language versions of the article "Problem Riesela" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Riesel number		230
2	Ukrainian (uk) Числа Різеля		92
3	Russian (ru) Числа Ризеля		47
4	French (fr) Nombre de Riesel		8
5	Italian (it) Numero di Riesel		6
6	Dutch (nl) Rieselgetal		4
7	Romanian (ro) Număr Riesel		3
8	Finnish (fi) Rieselin luku		2
9	Norwegian (no) Rieseltall		2
10	Polish (pl) Problem Riesela		1

More...

#	Language	Value
en	English Riesel number
fi	Finnish Rieselin luku
fr	French Nombre de Riesel
it	Italian Numero di Riesel
nl	Dutch Rieselgetal
no	Norwegian Rieseltall
pl	Polish Problem Riesela
ro	Romanian Număr Riesel
ru	Russian Числа Ризеля
uk	Ukrainian Числа Різеля
zh	Chinese 黎瑟尔数

Best Rank

Polish: #349269 08.2010

Global: #691113 01.2008

Best Rank

Polish: #12935 06.2010

Global: #47611 09.2003

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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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information