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