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