双子素数

Japanese

Kanji in this term
双 子 素 数
ふた
Grade: S 		こ > ご
Grade: 1 		そ
Grade: 5 		すう
Grade: 2
kun'yomi kan'on kan'yōon
Alternative spelling
雙子素數 (kyūjitai)

Etymology

From 双(ふた)子(ご) (futago) + 素(そ)数(すう) (sosū).

Pronunciation

  • (Tokyo) ふたごそすう [fùtágósóꜜsùù] (Nakadaka – [4])[1]
  • IPA(key): [ɸɯ̟ta̠ɡo̞so̞sɨː]

Noun

双(ふた)子(ご)素(そ)数(すう) • (futagososū) 

  1. (number theory) twin prime, a prime number that is either 2 less or 2 more than another prime number, such as 3 and 5
  • いとこ素(そ)数(すう) (itokososū)
  • 三(み)つ子(ご)素(そ)数(すう) (mitsugososū)
  • 四(よ)つ子(こ)素(そ)数(すう) (yotsukososū)

References

  1. ^ Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN
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