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