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