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