二個の平方数の和

Fermat's theorem on sums of two squares - theorem that an odd prime is a sum of two squares iff it is of the form 4?+1. Article "二個の平方数の和" in Japanese Wikipedia has 14.1 points for quality (as of July 1, 2025). The article contains 5 references and 13 sections.

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

Since the creation of article "二個の平方数の和", its content was written by 19 registered users of Japanese Wikipedia and edited by 536 registered Wikipedia users in all languages.

The article is cited 36 times in Japanese Wikipedia and cited 532 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #22764 in October 2015
• Global: #27311 in October 2011

The highest popularity rank from 2008:

• Local (Japanese): #118783 in March 2021
• Global: #44632 in August 2011

There are 21 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	Catalan (ca) Teorema de la suma de dos quadrats		72.9985
2	French (fr) Théorème des deux carrés de Fermat		66.2279
3	Spanish (es) Teorema de Fermat sobre la suma de dos cuadrados		42.6734
4	English (en) Fermat's theorem on sums of two squares		41.2858
5	German (de) Zwei-Quadrate-Satz		31.2151
6	Tamil (ta) இரு வர்க்கங்களின் கூடுதல் மீதான பெர்மாவின் தேற்றம்		26.956
7	Korean (ko) 페르마 두 제곱수 정리		19.7457
8	Galician (gl) Teorema de Fermat sobre a suma de dous cadrados		14.7095
9	Belarusian (be) Тэарэма Ферма — Эйлера		14.6677
10	Russian (ru) Теорема Ферма — Эйлера		14.6438

More...

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

The most popular language versions of the article "二個の平方数の和" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Fermat's theorem on sums of two squares		992 573
2	French (fr) Théorème des deux carrés de Fermat		241 693
3	Spanish (es) Teorema de Fermat sobre la suma de dos cuadrados		140 221
4	Japanese (ja) 二個の平方数の和		133 151
5	Russian (ru) Теорема Ферма — Эйлера		111 768
6	Vietnamese (vi) Định lý Fermat về tổng của hai số chính phương		84 720
7	Italian (it) Teorema di Fermat sulle somme di due quadrati		84 559
8	Chinese (zh) 费马平方和定理		58 592
9	Polish (pl) Twierdzenie Fermata o sumie dwóch kwadratów		48 540
10	Korean (ko) 페르마 두 제곱수 정리		38 484

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 "二個の平方数の和" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Fermat's theorem on sums of two squares		3 966
2	French (fr) Théorème des deux carrés de Fermat		701
3	Japanese (ja) 二個の平方数の和		530
4	Russian (ru) Теорема Ферма — Эйлера		448
5	Chinese (zh) 费马平方和定理		299
6	German (de) Zwei-Quadrate-Satz		288
7	Spanish (es) Teorema de Fermat sobre la suma de dos cuadrados		251
8	Vietnamese (vi) Định lý Fermat về tổng của hai số chính phương		212
9	Italian (it) Teorema di Fermat sulle somme di due quadrati		209
10	Korean (ko) 페르마 두 제곱수 정리		141

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

Language versions of the article "二個の平方数の和" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Fermat's theorem on sums of two squares		132
2	German (de) Zwei-Quadrate-Satz		95
3	French (fr) Théorème des deux carrés de Fermat		78
4	Italian (it) Teorema di Fermat sulle somme di due quadrati		33
5	Russian (ru) Теорема Ферма — Эйлера		25
6	Hebrew (he) סכום של שני ריבועים		24
7	Catalan (ca) Teorema de la suma de dos quadrats		21
8	Japanese (ja) 二個の平方数の和		19
9	Spanish (es) Teorema de Fermat sobre la suma de dos cuadrados		18
10	Korean (ko) 페르마 두 제곱수 정리		13

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 "二個の平方数の和" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) مبرهنة فيرما حول مجموع مربعين		2
2	Belarusian (be) Тэарэма Ферма — Эйлера		0
3	Catalan (ca) Teorema de la suma de dos quadrats		0
4	German (de) Zwei-Quadrate-Satz		0
5	English (en) Fermat's theorem on sums of two squares		0
6	Spanish (es) Teorema de Fermat sobre la suma de dos cuadrados		0
7	French (fr) Théorème des deux carrés de Fermat		0
8	Galician (gl) Teorema de Fermat sobre a suma de dous cadrados		0
9	Hebrew (he) סכום של שני ריבועים		0
10	Hungarian (hu) Kétnégyzetszám-tétel		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 "二個の平方数の和" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Italian (it) Teorema di Fermat sulle somme di due quadrati		79
2	French (fr) Théorème des deux carrés de Fermat		77
3	English (en) Fermat's theorem on sums of two squares		69
4	Japanese (ja) 二個の平方数の和		36
5	Catalan (ca) Teorema de la suma de dos quadrats		30
6	Dutch (nl) Stelling van Fermat over de som van twee kwadraten		27
7	Hebrew (he) סכום של שני ריבועים		25
8	Chinese (zh) 费马平方和定理		25
9	German (de) Zwei-Quadrate-Satz		23
10	Spanish (es) Teorema de Fermat sobre la suma de dos cuadrados		23

More...

#	Language	Value
ar	Arabic مبرهنة فيرما حول مجموع مربعين
be	Belarusian Тэарэма Ферма — Эйлера
ca	Catalan Teorema de la suma de dos quadrats
de	German Zwei-Quadrate-Satz
en	English Fermat's theorem on sums of two squares
es	Spanish Teorema de Fermat sobre la suma de dos cuadrados
fr	French Théorème des deux carrés de Fermat
gl	Galician Teorema de Fermat sobre a suma de dous cadrados
he	Hebrew סכום של שני ריבועים
hu	Hungarian Kétnégyzetszám-tétel
it	Italian Teorema di Fermat sulle somme di due quadrati
ja	Japanese 二個の平方数の和
ko	Korean 페르마 두 제곱수 정리
nl	Dutch Stelling van Fermat over de som van twee kwadraten
pl	Polish Twierdzenie Fermata o sumie dwóch kwadratów
ru	Russian Теорема Ферма — Эйлера
ta	Tamil இரு வர்க்கங்களின் கூடுதல் மீதான பெர்மாவின் தேற்றம்
tr	Turkish Fermat'ın iki kare toplamı teoremi
uk	Ukrainian Теорема Ферма про суму двох квадратів
vi	Vietnamese Định lý Fermat về tổng của hai số chính phương
zh	Chinese 费马平方和定理

Best Rank

Japanese: #118783 03.2021

Global: #44632 08.2011

Best Rank

Japanese: #22764 10.2015

Global: #27311 10.2011

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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