Word
divisor
除数
The number by which another number is divided in a division expression.
- 1.
In an expression involving division, the number by which another number is being divided.
除法运算中,用来除另一个数的数。
- 2.
one of two or more integers that can be exactly divided into another integer
能整除另一个整数的整数之一
- 3.
An integer that divides another integer an integral number of times, the former being called a divisor of the latter.
能整除另一个整数的整数,前者称为后者的因数。
- 4.
the number by which a dividend is divided
除法中被除数除以的数
- 5.
Any of several kinds of formal object associated to an algebraic variety, scheme, etc., which play a role similar to that of homology or cohomology groups in the study of topological spaces.
与代数簇、概形等相关联的几种形式对象之一,在拓扑空间研究中扮演类似同调或上同调群的角色。
约数；因数；（代数几何中的）除子；除法运算中,用来除另一个数的数。；能整除另一个整数的整数之一；能整除另一个整数的整数,前者称为后者的因数。
In use
If the remainder is not zero, try another divisor.
Every integer greater than 1 has at least two divisors: 1 and itself.
To simplify the fraction, divide the numerator and the denominator by their greatest common divisor.
be a divisor of sth
表示一个数能整除另一个数。
7 is a divisor of 28.
7是28的一个除数。
the common divisor of sth
指能同时整除多个数的数，常用在数学中。
We need to find the common divisors of these two numbers.
我们需要找到这两个数的公约数。
Common mistakes
In 10 ÷ 2 = 5, the divisor is 10.
Connections
Collocations
- common divisor
- 公约数
- Twelve and eighteen have several common divisors, including 2, 3, and 6.12和18有几个公约数，包括2、3和6。
- greatest common divisor
- 最大公约数
- The greatest common divisor of 24 and 36 is 12.24和36的最大公约数是12。
- positive divisor
- 正约数
- A positive divisor of a number is any positive integer that divides it exactly.一个数的正约数是能整除它的任何正整数。
- proper divisor
- 真约数
- A proper divisor of 12 is any divisor less than 12, such as 6.12的真约数是任何小于12的约数，例如6。
- zero divisor
- 零因子
- In ring theory, a zero divisor is a nonzero element whose product with some other nonzero element is zero.在环论中，零因子是非零元素，它与某个非零元素的乘积为零。
Learner notes
Memory Tip
联想 divide（除）的变体，-or 像“做…者”；在除法里负责除别人的数就是除数。
Context & Register
语域：formal 常见场景：小学数学教材、数学习题、学术数学写作 divisor 是数学术语，通常出现在教材、习题和较正式的书面说明中；日常口语里比较常见于用“除以几”这类表达，而单独说 divisor 的机会较少。
Pronunciation & Spelling
Sound matches: visor, advisor, wiser, and riser rhyme with divisor (stressed /aɪ/ followed by /zɚ/). Supervisor also has the same final /vaɪzɚ/ chunk, but its main stress falls earlier. Beware lookalikes: division /dɪˈvɪʒən/ and divisive /dɪˈvaɪsɪv/ have different vowels and consonants despite similar spellings.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.