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