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