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