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