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