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