Japanese symbol for “disjoint”

互いに素

たがいにそ

Romaji: tagainiso

coprime; relatively prime

In Japanese, disjoint is 互いに素, read たがいにそ (tagainiso).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

adj-na, n coprime; relatively prime (math)
adj-na, n disjoint (sets) (math)

Kanji and stroke order

互

mutually, reciprocally, together

on: ゴ
kun: たが.い、かたみ.に

4 strokes · JLPT 2

素

elementary, principle, naked

on: ソ、ス
kun: もと

10 strokes · JLPT 1

Related words

Words that share a kanji.

Word	Reading	Meaning
相互	そうご sougo	mutual; reciprocal
互いに	たがいに tagaini	mutually; with each other; reciprocally
互い	たがい tagai	each other; one another
交互	こうご kougo	alternate; alternating
互換	ごかん gokan	interchange
互角	ごかく gokaku	equal (in ability); even; evenly matched
要素	ようそ youso	element; component; factor
素材	そざい sozai	ingredient; (raw) material; resource

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.