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