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