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