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