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