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