prime number編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看prime numberprime number — 名詞名詞1. A number that can only be divided exactly by 1 and itself.1.名詞釋義質數A number that can only be divided exactly by 1 and itself.例句7 is a prime number because only 1 and 7 divide it exactly.