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