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