4th Grade Factors, Multiples, Prime and Composite Worksheet (PDF)
This factors multiples worksheet for 4th Grade covers factors, multiples, prime and composite (Common Core 4.OA.B.4), with a free PDF to print.
Grade 4 · Common Core State Standards: 4.OA.B.4
Factors multiples worksheet: exercises 1 to 10
Exercise 1 – Factor pairs of 12
Write all the factor pairs of 12.
Exercise 2 – Factors of 18
List all the factors of 18 from least to greatest.
Exercise 3 – Multiples of 7
Write the first six multiples of 7.
Exercise 4 – Reading an array
Maya arranged square tiles in the array below.
Write a multiplication equation for the array. Then list all the factor pairs of the number of tiles.
Exercise 5 – Is it a factor?
Is 6 a factor of 54? Explain how you know.
Exercise 6 – Is it a multiple?
Decide whether each number is a multiple of 8: (a) 56 (b) 58.
Exercise 7 – Multiples of 4 in a list
Find all the multiples of 4 in this list: 14, 20, 26, 32, 38, 44.
Exercise 8 – Missing multiples
The dots on the number line show multiples of 8. Write the three missing numbers.
Exercise 9 – Prime or composite
Tell whether each number is prime or composite: 7, 9, 11, 15.
Exercise 10 – Primes from 20 to 40
List all the prime numbers between 20 and 40.
Exercises 11 and up
Exercise 11 – Odd one out
Three of the numbers 13, 17, 21 and 23 are prime. Find the number that is not prime and show a factor pair that proves it.
Exercise 12 – Divisibility by last digit
Without dividing, tell whether 3,465 is divisible by (a) 2 (b) 5 (c) 10.
Exercise 13 – Factor pairs of 36
Find all the factor pairs of 36. How many factors does 36 have?
Exercise 14 – Factors of 48
List every factor of 48 and tell how many there are.
Exercise 15 – Sticker poster
Maya has 28 stickers. She wants equal rows with no stickers left over. The picture shows one way. List every possible row length (number of stickers in a row).
Exercise 16 – Muffin boxes
A bakery packs muffins in boxes of 6 with none left over.
Which of these totals can be packed exactly: 42, 50, 54, 62?
Exercise 17 – Team sizes
Coach Rivera has 30 players and wants equal teams. Each team needs at least 2 players and at most 10 players. List the possible team sizes.
Exercise 18 – Bus schedule
A school bus leaves the stop every 15 minutes, starting at 8:15 AM. The number line shows the first three buses after 8:00. List the next three departure times. Does a bus leave at 9:30 AM?
Exercise 19 – Mystery prime
Find the number. It is a prime number between 40 and 50, and the sum of its digits is 11.
Exercise 20 – Ethan's claim
Ethan says 51 is prime because it is odd and is not in the 2, 5 or 10 times tables. Is Ethan right? Show your reasoning with factor pairs.
Key facts behind this factors multiples worksheet
- A factor pair multiplies to make the number, such as 3 and 8 for 24.
- A number has a limited list of factors but endless multiples.
- A prime number has exactly two factors; a composite number has more than two.
- The number 1 is neither prime nor composite, and 2 is the only even prime.
- Last-digit patterns: 2 for even numbers, 5 for 0 or 5, 10 for 0.
How to use this factors multiples worksheet
Work through the exercises in order: they go from simple to challenging. Write every step on paper, then compare with the solutions page and redo any exercise you missed the next day.
Download the factors multiples worksheet as a PDF with the button below and keep it with your notes.
All Grade 4 chapters: Grade 4 math.
