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