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