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