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