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