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