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