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