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