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