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