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