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