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