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