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