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