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