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