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