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