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