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