因数分解 いんすうぶんかい Meanings Noun, する verb, Transitive factorization; factorisation Kanji 因 cause. Read as イン. 数 number. Read as スウ. 分 part. Read as ブン. 解 undo. Read as カイ. Words containing 因数分解 素因数分解 (そいんすうぶんかい) prime factorization Jinuma: Japanese Dictionary · Word lists