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