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