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