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