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