名词
中文翻译：复合数
同义词：
['multiset', 'multiple', 'composite']
例句：
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1.The professor explained the concept of a composite number to us.
教授向我们解释了复合数的概念。
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2.In mathematics, a composite number is a number that can be written as the product of two distinct positive integers.
在数学中，一个复合数是可以表示为两个不同正整数乘积的数。
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3. The prime factorization of 15 is 3 × 5, which means it has two composite numbers in its factorization.
15的质因数分解是3×5，这意味着它的因式分解中有两对复合数。