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