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