WaffleMath LogoWaffleMath
K12345678HSBrowse standardsBrowse worksheetsTeacher resources

Prime & Composite Worksheet

Recommended for 4th Grade — 6th Grade

More Prime & Composite GamesAll Worksheets
New Worksheet

Prime & Composite Worksheet

Name: ____________________Date: ____________

Instructions: Identifying prime and composite numbers and writing prime factorizations.

20 problems

  1. Prime numbers in {23, 17, 2, 25, 9, 27} → ______
  2. Prime numbers in {8, 2, 3, 7, 13, 17} → ______
  3. Prime numbers in {25, 12, 29, 5, 13, 2} → ______
  4. Prime numbers in {21, 11, 5, 29, 25, 23} → ______
  5. Prime numbers in {29, 23, 5, 13, 21, 17} → ______
  6. Prime numbers in {8, 27, 3, 19, 25, 7} → ______
  7. Prime numbers in {5, 9, 23, 7, 3, 19} → ______
  8. Prime numbers in {19, 27, 8, 25, 5, 7} → ______
  9. Prime numbers in {13, 12, 7, 2, 11, 5} → ______
  10. Prime numbers in {23, 8, 27, 7, 11, 5} → ______
  11. Prime numbers in {7, 17, 9, 21, 5, 3} → ______
  12. Prime numbers in {5, 12, 27, 9, 13, 3} → ______
  13. Prime numbers in {27, 3, 21, 7, 29, 8} → ______
  14. Prime numbers in {27, 23, 2, 19, 15, 8} → ______
  15. Prime numbers in {15, 27, 9, 3, 13, 11} → ______
  16. Prime numbers in {7, 11, 3, 8, 25, 21} → ______
  17. Prime numbers in {2, 9, 7, 27, 11, 25} → ______
  18. Prime numbers in {25, 23, 9, 21, 15, 11} → ______
  19. Prime numbers in {23, 15, 17, 5, 8, 12} → ______
  20. Prime numbers in {2, 12, 7, 3, 5, 25} → ______