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