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