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