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