いとこ素数

Japanese

Kanji in this term
素 数
そ
Grade: 5 		すう
Grade: 2
kan'on kan'yōon
Alternative spelling
いとこ素數 (kyūjitai)

Etymology

From いとこ (itoko) + 素(そ)数(すう) (sosū).

Pronunciation

  • (Tokyo) いとこそすう [ìtókósóꜜsùù] (Nakadaka – [4])[1]
  • IPA(key): [ito̞ko̞so̞sɨː]

Noun

いとこ素(そ)数(すう) • (itokososū) 

  1. (number theory) cousin prime, a prime number that is either 4 less or 4 more than another prime number, such as 3 and 7

References

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