4th Grade Factors, Multiples, Prime and Composite Worksheet (PDF)

Write all the factor pairs of 12.

List all the factors of 18 from least to greatest.

Write the first six multiples of 7.

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.

Is 6 a factor of 54? Explain how you know.

Decide whether each number is a multiple of 8: (a) 56 (b) 58.

Find all the multiples of 4 in this list: 14, 20, 26, 32, 38, 44.

The dots on the number line show multiples of 8. Write the three missing numbers.

Tell whether each number is prime or composite: 7, 9, 11, 15.

List all the prime numbers between 20 and 40.

Explain why 2 is the only even prime number.

Without dividing, tell whether 3,465 is divisible by (a) 2 (b) 5 (c) 10.

Find all the factor pairs of 36. How many factors does 36 have?

List every factor of 48 and tell how many there are.

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).

A bakery packs muffins in boxes of 6 with none left over.

Which of these totals can be packed exactly: 42, 50, 54, 62?

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.

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?

Find the number. It is a prime number between 40 and 50, and the sum of its digits is 11.

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.