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