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