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