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