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