N ⊆ Z ⊆ Q ⊆ R ⊆ C \subseteq \mathbb \subseteq \mathbb \subseteq \mathbb \subseteq \mathbb }
Kok-chióng ê sò͘ | ||
Ki-pún | ||
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Iân-sin | ||
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Kî-thaⁿ | ||
= 3.141592653… |
Sò͘-ha̍k lāi-té kóng ê sò͘-sò͘ (素數, prime), mà ho͘-chó͘ chit-sò͘ (質數) sī kí phēng 1 toā, kan-taⁿ ē-tit hō͘ 1 kap i pún-sin tû ē chīn ê chū-jiân-sò͘. Iā tō sī kóng, sò͘-sò͘ tō sī tú-hó ū 2 ê iok-sò͘ ê chū-jiân-sò͘. Phēng 1 toā, koh m̄ sī sò͘-sò͘ ê chū-jiân-sò͘ hō-chò ha̍p-sêng-sò͘ (composite number). 0 kap 1 m̄ sī sò͘-sò͘ mā m̄ sī ha̍p-sêng-sò͘. Sò͘-sò͘ sī sò͘-lūn (number theory) ê ki-chân.
Sò͘-sò͘ ùi 2 khai-sí pâi, bô chīn-pōng:
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