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