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