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