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