Grade 4 HMH Go Math - Answer Keys Answer keys Common Core / Prime and Composite Numbers

Homework Explained - Math Practice 101

Dear guest, you are not a registered member. As a guest, you only have read-only access to our books, tests and other practice materials.

As a registered member you can:

View all solutions for free
Request more in-depth explanations for free
Ask our tutors any math-related question for free
Email your homework to your parent or tutor for free

Registration is free and doesn't require any type of payment information. Click here to Register.

Go to page:

Grade 4 HMH Go Math - Answer Keys

Common Core / Prime and Composite Numbers

Please share this page with your friends on FaceBook

Prime and Composite Numbers

Tell whether the number is prime or composite

Question 1 (request help)

Question 2 (request help)
68

(show solution)

Question 3 (request help)
52

(show solution)

Question 4 (request help)
63

(show solution)

Question 5 (request help)
75

(show solution)

Question 6 (request help)
31

(show solution)

Question 7 (request help)
77

(show solution)

Question 8 (request help)
59

(show solution)

Question 9 (request help)
87

(show solution)

Question 10 (request help)
72

(show solution)

Question 11 (request help)
49

(show solution)

Question 12 (request help)
73

(show solution)

Problem Solving

Question 13 (request help)
Kai wrote the number 85 on the board. Is 85 prime or composite?

(show solution)

Question 14 (request help)
Lisa says that 43 is a 2-digit odd number that is composite. Is she correct?

(show solution)

Yes, email page to my online tutor. (if you didn't add a tutor yet, you can add one here)