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