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