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