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