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