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