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