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