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