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