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