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