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