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