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