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