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