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