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