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