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学习了“因数和倍数”的知识后,同学们应该理解和掌握以下知识点:一、明确因数和倍数的关系因数和倍数是一种相互依存的关系,任何一方都不能单独存在。因此,不能说某一个数是因数,也不能说某一个数是倍数。如:3×5=15,我们可以说3或5是15的因数,或者说15是3和5的倍数;而不能说15是倍数,3和5是因数。二、知道一个自然数(0除外)的因数和倍数的个数一个自然数(0除外)的因数的个数是有限的,其中最小的一个是1,最大的一个是它本身。
After learning the knowledge of “factors and multiples”, students should understand and master the following points: 1. Define the relationship between factors and multiples. Factors and multiples are interdependent and no one party can exist alone. Therefore, we can not say that a certain number is a factor, nor can we say that a certain number is a multiple. Such as: 3 × 5 = 15, we can say that 3 or 5 is a factor of 15, or 15 is a multiple of 3 and 5; but can not say that 15 is a multiple, 3 and 5 is a factor. Second, know a natural number (except 0) factor and the number of multiple A natural number (except 0) the number of factors is limited, the smallest one is 1, the largest one is itself.