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