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