因 数(いんすう)

いんすう

noun

factor (mathematics)

1. factor (in mathematics)

A number or expression that divides another exactly, so that the second is a product of the first and something else: 2 and 3 are factors of 6. A school mathematics term.

式(しき)を因数分解(いんすうぶんかい)する。

To factorize the expression.

十二(じゅうに)の素因数(そいんすう)は二(に)と三(さん)だ。

The prime factors of twelve are two and three.

中学(ちゅうがく)の数学(すうがく)で習(なら)った因数分解(いんすうぶんかい)を、今(いま)ではすっかり忘(わす)れてしまった。

I've completely forgotten the factorization I learned in junior high math.

Common collocations

因数分解(いんすうぶんかい): factorization
素因数(そいんすう): prime factor
素因数分解(そいんすうぶんかい): prime factorization
共通因数(きょうつういんすう): common factor

Similar words

約数(やくすう): divisor; in school arithmetic with whole numbers it means the same thing, while 因数(いんすう) is the word used for algebraic expressions and in 因数分解(いんすうぶんかい)
倍数(ばいすう): multiple, the converse relation

Related Words

Compare: 倍数(ばいすう) (multiple, the converse relation)

general

Added 2026.10.17 22:41 · Revised 2026.10.17 22:45

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