How to say "integer" in Japanese
Choosing the right word
- 整数せいすうnounThe common word for 'integer' in its mathematical sense, a whole number; this is the term used in mathematics and in ordinary talk about numbers, and the one you will almost always want.
- nounA katakana loanword covering the same sense, 'integer' as a whole number; it is less common, and seldom the word you want — 整数 is the usual choice.
Both words cover the same sense of 'integer', a whole number, so the choice is not about meaning: use 整数, the common term, in almost any context; 「インテジャー」 is a less common loanword you will seldom need.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
