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