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