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