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