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