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