Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {5, 19, 12, 27, 3, 21} → ______
- Prime numbers in {29, 5, 15, 11, 12, 25} → ______
- Prime numbers in {9, 19, 27, 3, 21, 23} → ______
- Prime numbers in {12, 25, 9, 5, 13, 27} → ______
- Prime numbers in {3, 12, 17, 21, 29, 25} → ______
- Prime numbers in {7, 19, 21, 5, 27, 3} → ______
- Prime numbers in {27, 11, 17, 2, 25, 21} → ______
- Prime numbers in {21, 27, 29, 2, 8, 5} → ______
- Prime numbers in {8, 3, 21, 17, 9, 23} → ______
- Prime numbers in {11, 21, 23, 15, 12, 17} → ______
- Prime numbers in {5, 29, 19, 11, 13, 25} → ______
- Prime numbers in {13, 11, 5, 7, 3, 12} → ______
- Prime numbers in {29, 7, 11, 23, 13, 2} → ______
- Prime numbers in {9, 12, 25, 13, 21, 11} → ______
- Prime numbers in {19, 25, 21, 2, 12, 9} → ______
- Prime numbers in {27, 21, 19, 7, 29, 25} → ______
- Prime numbers in {23, 13, 15, 2, 25, 7} → ______
- Prime numbers in {2, 7, 23, 8, 9, 25} → ______
- Prime numbers in {9, 15, 3, 17, 13, 5} → ______
- Prime numbers in {29, 13, 17, 2, 3, 9} → ______