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