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