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