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