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