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