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