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