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