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