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