4th Grade Factors, Multiples, Prime and Composite Test with Point Values (PDF)

Write all the factor pairs of 40.

The dots show multiples of 9. Write the two missing numbers.

The array shows tiles.

Write a multiplication equation for the array. Then list all the factors of the number of tiles.

Write prime or composite for each number: (a) 27 (b) 31 (c) 49 (d) 61.

Which of these numbers are multiples of 9: 63, 72, 85, 91, 99?

Mia says, “1 is a prime number.” Is Mia correct? Explain.

1. Find a multiple of 8 between 50 and 60. (1 point)
2. Find a prime number between 80 and 90 whose digits add to 11. (1 point)
3. Find an odd composite number between 10 and 20 that is a multiple of 5. (1 point)

Without dividing, tell whether 3,845 is divisible by (a) 2 (b) 5 (c) 10.

A teacher has 32 desks. One arrangement is shown.

1. List every arrangement that has at least 2 rows and at least 2 desks in each row. Write each as rows x desks. (2 points)
2. Is 32 prime or composite? Explain. (1 point)