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