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