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