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