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