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