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