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