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