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