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