素數 / 素数
sùshù
In mathematics, the English word 'prime' (referring to a prime number) is expressed in Chinese as 素數 / 素数 (sùshù). Wiktionary also lists 質數 / 质数 (zhìshù).
Meaning: mathematics: having no factors except itself and unity (adj)
Ways to say it
| Chinese | Romanization (Wiktionary) |
|---|---|
| 素數 / 素数 | sùshù |
| 質數 / 质数 | zhìshù |
In a mathematical context, these terms refer to a number having no factors except itself and unity. If you mean 'prime' in the sense of high quality or superior, use the formal term 优质. If you are referring to a 'prime' or principal aspect of something, use 主要. For the verb 'to prime' (applying a coat of primer paint), use 涂底漆 or 上底漆. In algebra, the term for a prime element of a mathematical structure is also 素数.
What does it mean word for word?
The term 素數 (sùshù) is composed of 素, meaning plain, elemental or undifferentiated and 數, meaning number.
Which one should you use?
Both 素數 / 素数 and 質數 / 质数 mean 'prime number'.
Is it said differently in some regions?
素數 / 素数 is more common in mainland China, while 質數 / 质数 is frequently used in Taiwan and Hong Kong.
Related words
How do you pronounce it?
sùshù
Did you know?
- The character 素 originally referred to a white, undyed silk. This evolved into the meaning of 'plain' or 'elemental' used in the term 素數.
- The character 素 used in 素數 is also the same word used for 'vegetarian' in Chinese. It conveys the idea of being 'plain' or 'pure' and free from additives.
- The character 質 in 質數 is also used in Chinese philosophy to represent 'substance' or 'essence'.
Examples in context
- 这家餐厅的服务和食物质量都很优质。The service and food quality at this restaurant are both prime.
- 他是这个团队的主要负责人。He is the prime person in charge of this team.
- 这个电影的特效堪称顶级。The special effects in this movie can be considered prime.
- 这家公司的服务一流，值得信赖。This company provides prime services and is trustworthy.
Sources
- Wiktionary, “prime” translations, CC BY-SA 4.0, dump of 2026-09-26.
