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