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