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