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