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