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