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