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