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