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