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