质数

質數
zhìshù
noun #25,565

Measure Word

Meanings

  1. 1 prime number

Examples

HSK 1
2、3、5、7都是质数。
2, 3, 5, 7 dōu shì zhìshù.
2, 3, 5, and 7 are all prime numbers.
HSK 6
Zhìshù zhǐnéng bèi 1 hé tā běnshēn zhěngchú.
A prime number can only be divided evenly by 1 and itself.

Tips

memory
质 suggests the essential 'nature' of a number - a prime number is in its most essential, indivisible form.

Stroke Order

质 zhì
数 shù