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