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