Grade 4 · Math · Lesson 5

Identify Factors and Multiples

Factors and multiples are two key ideas in number theory. A factor divides evenly into a number with no remainder. A multiple is what you get when you multiply a number by 1, 2, 3, and so on. Understanding both helps with fractions, common denominators, and problem solving.

What this lesson teaches

1Define factors as numbers that divide evenly into a given number
2List all factor pairs for numbers up to 50
3Define multiples as products of a number and any whole number
4Distinguish between factors and multiples of a given number

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