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