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