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