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