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