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