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