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 {3, 7, 11, 9, 2, 23} → ______
- Prime numbers in {19, 23, 11, 27, 25, 8} → ______
- Prime numbers in {23, 9, 19, 17, 21, 11} → ______
- Prime numbers in {19, 21, 2, 9, 5, 8} → ______
- Prime numbers in {29, 12, 23, 21, 9, 5} → ______
- Prime numbers in {11, 5, 27, 17, 2, 7} → ______
- Prime numbers in {21, 2, 27, 23, 15, 5} → ______
- Prime numbers in {8, 12, 2, 9, 29, 13} → ______
- Prime numbers in {13, 3, 7, 15, 25, 8} → ______
- Prime numbers in {2, 11, 9, 7, 3, 17} → ______
- Prime numbers in {3, 17, 27, 9, 21, 23} → ______
- Prime numbers in {29, 2, 19, 3, 13, 12} → ______
- Prime numbers in {19, 9, 12, 17, 7, 3} → ______
- Prime numbers in {12, 25, 21, 3, 15, 17} → ______
- Prime numbers in {2, 12, 3, 25, 15, 17} → ______
- Prime numbers in {21, 29, 27, 23, 3, 12} → ______
- Prime numbers in {8, 11, 5, 29, 2, 9} → ______
- Prime numbers in {5, 2, 25, 8, 9, 11} → ______
- Prime numbers in {5, 7, 29, 12, 3, 27} → ______
- Prime numbers in {19, 27, 5, 8, 2, 21} → ______