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