Factors, Multiples, and Patterns
Aligned to 4.OA.B.4 — Common Core State Standards for Mathematics.
What this lesson teaches
A factor is a number that divides evenly into another number, and a multiple is what you get when you skip-count by a number. A number with exactly two factors, 1 and itself, is prime, while a number with more factors is composite.
Worked example
The factors of 12 are 1, 2, 3, 4, 6, and 12. The first multiples of 4 are 4, 8, 12, 16. Since 12 has many factors, it is composite.
Practice questions
- List all the factor pairs of 18.
- Is 7 prime or composite?
- What are the first four multiples of 6?
Watch the lesson
Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.
▶ Watch this lessonEn español
Factores, Múltiplos y Patrones
Un factor es un número que divide exactamente a otro número, y un múltiplo es lo que obtienes cuando cuentas de forma salteada por un número. Un número que tiene exactamente dos factores, el 1 y él mismo, es primo, mientras que un número con más factores es compuesto.
Ejemplo: Los factores de 12 son 1, 2, 3, 4, 6 y 12. Los primeros múltiplos de 4 son 4, 8, 12, 16. Como 12 tiene muchos factores, es un número compuesto.
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