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