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