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