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