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