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