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