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