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