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