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