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