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