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