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