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