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